Sql error cant open file

sql error cant open file

Resolution: This means that the database it is trying to run the attachability checks on is not found within that snapshot/database. - Look for the database. This error occurs because an instance of SQL Server is running, before trying to copy the database files we need to stop the sql server. In case you couldn't start your SQL Server Instance and getting the following error message in your windows application logs.

youtube video

ORA-12705: Cannot Access NLS Data Files Or Invalid Environment Specified

Sql error cant open file - join

Resolving could not open a connection to SQL Server errors


Comments For This Article




Friday, July 22, 2022 - 5:17:11 PM - DemosthenesBack To Top(90306)
Great article! Thank you very much. Very helpful.

Wednesday, July 13, 2022 - 4:25:18 AM - RanjithBack To Top(90251)
I am getting error :

can not connect to in_templ< -816 >, SQLSTATE = 08001 Can you please help to resolve this issue

Monday, October 4, 2021 - 7:39:25 PM - MeliandahBack To Top(89304)
So, i had troubles since 2 days but everything was nice , i didnt found problem until...
in fact : 1 problem isnt solved in your tutorial, it's the missing package from NuGet for Universal Windows Applications :)
Even adding external references from MySql DLLs don't work , for UWP , go to NuGet package management (or manually in windows selection in VS) and add MySql.Data (or any other package who manage MySql).
Then all functions will work \o/ .

Friday, October 1, 2021 - 7:17:49 PM - robBack To Top(89295)
man... thank you so much! i was going crazy and it was the sql server had the firewall on and didn't allow any connections to it. Never thought about it until this article, thanks again!!

Wednesday, July 28, 2021 - 11:45:18 AM - EladBack To Top(89067)
didnt solve my problem at all
What can I do ?
https://docs.microsoft.com/en-us/answers/questions/493149/error-40-could-not-open-a-connection-to-sql-server-1.html

Wednesday, July 28, 2021 - 11:44:32 AM - EladBack To Top(89066)
Sorry but that didnt help me, in my windows the SQL SERVER looks different.
I have the same error- Error: 40- could not open a connection to SQL Server - in Visual Studio 2019

Tuesday, June 15, 2021 - 12:18:04 PM - Derek MartindaleBack To Top(88857)
Fixed my problem!
Very clear, very detailed instructions.
Thank you

Tuesday, February 9, 2021 - 9:40:00 PM - Glenn Orlando PringleBack To Top(88202)
Thanks!!!
You helped me figure out my issue

Tuesday, February 2, 2021 - 10:21:20 PM - DominicBack To Top(88140)
When the browser service is turned off and you have a unique port number for the SQL Server, consider that you require an alias name when trying to connect to the hostname only in SSMS. Within the SQL Configuration Manager under the SQL Native Client >> Aliases section for both native client sections add the alias name the same as the hostname along with the unique port number.

Saturday, January 2, 2021 - 6:12:53 PM - Ben Z.Back To Top(87994)
Awesome! You resolved my issue!

Monday, November 16, 2020 - 7:54:13 AM - Vanitha SundaramBack To Top(87799)
Hi All,
I tried all the above remedies. But none worked. Please help on it.
Connect to Server ------------------------------ Cannot connect to DESKTOP-JQ2TJQV. ------------------------------ ADDITIONAL INFORMATION: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error: 2) For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft%20SQL%20Server&EvtSrc=MSSQLServer&EvtID=2&LinkId=20476 ------------------------------ The system cannot find the file specified ------------------------------ BUTTONS: OK -----------------------------

Tuesday, September 15, 2020 - 2:01:12 PM - Emmanuel IkonneBack To Top(86481)
SQL Server Browser was the problem for me.

Saturday, July 18, 2020 - 3:51:53 PM - Bjorgen EatingerBack To Top(86153)

Fantastic article, but you forgot a really important item to check, especially if the database was just copied from one server to another.

The PASSWORD.  I was able to resolve my problem by using your "XP_READERRORLOG" hint, and I found the following in the logs:

2020-07-18 12:18:37.630 Logon Login failed for user 'xxxx'. Reason: Password did not match that for the login provided. [CLIENT: 10.1.252.250]

No idea why Microsoft wasted hours of my time with this very stupid issue, as I did copy the logins from the old server to the new one.


Wednesday, February 26, 2020 - 8:35:07 AM - AdrianoBack To Top(84812)

Hi Jugal Shah, excellent article! I’m facing a problem that perhaps you can help me. I have a SQL server registered with a non-default instance name. I’ve done everything you explained in your “Resolving could not open a connection to SQL Server errors” article. Let’s say SERVER\INSTANCE. In the server itself I can only access, SSMS for example, using server\instance. It doesn’t work IP Adress\Instance as it does when working with another servers. It’s also curious that the clients can access only with the IP address without informing the instance name.

Regards!


Thursday, February 20, 2020 - 8:06:35 PM - William WoolmerBack To Top(84683)

Legendary sequence here, have used them repeatedly over the years.

Thank you


Tuesday, January 28, 2020 - 7:58:11 PM - Linda K.Back To Top(84022)

Dear Jugal Shah, Thank you so much for posting this. I am pretty much retired and haven't moved a database system to a new server since 2007. My last client decided to upgrade and it's been a bit of struggle remembering all the details that I once had down pat. My system administrator came across your article and resolved our problem by turning on Named Pipes. I'd completely forgotten about it. Such a fundamental thing that you never have to think about except when setting up a new system. Thanks again.


Friday, September 20, 2019 - 9:50:13 AM - MichaelBack To Top(82520)

A staff member had the same error on his computer but when I logged on to his computer, my SQL connection worked fine.

That implied some sort of permissions discrepancy. I gave him the same permissions as my account and he still got the error.

After doing some more digging, I found some entries and keys in my registry's HKEY_CURRENT user that pointed to the SQL database.

I exported the settings, saved it as a .REG file and imported them into the staff member's registry under his Windows logon.

Eureka! Success!


Wednesday, February 20, 2019 - 9:43:55 PM - SIBack To Top(79076)

Thank you. Manage to resolve issues on SQL server using your website guide.


Thursday, December 6, 2018 - 4:16:42 PM - AllanBack To Top(78417)

 Great solutions. it worked for me, in my case open port 1433 on firewall


Thursday, January 4, 2018 - 4:57:29 AM - RaghuBack To Top(74752)

 Thanks for the detailed steps issue resolved after enabling SQL browser

 


Friday, November 10, 2017 - 10:28:45 PM - mrduncleBack To Top(69555)

For me, take your pick:

- SQL Server Browser not running

- firewall not set up correctly

but it doesn't matter due to breadth of the issues covered in this comprehensive guide because I can now connect.  Only comment is that the Firewall section may need an update because current versions of windows (in my case Windows 10) doesn't look much like those dialogs. Thanks for taking the time to compile this thorough troubleshooting guide.


Wednesday, September 6, 2017 - 4:56:04 PM - Franklin MedinaBack To Top(65953)

 

Clear, understandable

Thanks!


Monday, July 17, 2017 - 8:20:17 AM - SandeepBack To Top(59467)

 Step 5 worked, thank you so much

 


Wednesday, May 3, 2017 - 11:23:20 AM - Josko ZlatarBack To Top(55414)

 

 Thank you for this really helpful cookbook!

 


Monday, August 1, 2016 - 9:39:43 AM - Munish GumberBack To Top(43019)

thanks man. you saved my time..great!!


Sunday, June 19, 2016 - 7:36:21 AM - GemoreBack To Top(41721)

Thank you man, you saved my night.

 

 


Thursday, June 9, 2016 - 8:20:59 AM - AtulBack To Top(41651)

 I also faced the same issue.

Root Cause: I found that SQL servr agent was not running.

After investigation I found that SQL server Agent process was not running due to password mismatch.

Resoltion : I update the my current password for all the process of SQL Server.

Steps : Control Panel > Adminstrative Tool > Services > Navigate to all SQL Processes and Update the password under properties window > logon tab.

 


Tuesday, June 7, 2016 - 11:09:54 PM - Jamal AfrozBack To Top(41633)

 I get Idea from this Article. I Simply changed IP address in place of name instance for data Source.

e.g. "SQLConnString" value="Data Source= IPAddress"

It work for me.

Thanks.

Jamal

 


Tuesday, March 1, 2016 - 2:01:32 AM - Ashish RohitBack To Top(40824)

 Thanks for this article, It solved my connection problem

 


Friday, February 12, 2016 - 2:52:04 AM - Narender GorigeBack To Top(40659)

Bull's eye. Spot on. Resolved my issue

 


Friday, February 5, 2016 - 7:01:02 AM - ramrajBack To Top(40605)

 

 

 

A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (.Net SqlClient Data Provider)

This error  comming what can i do? please halp me?

 


Thursday, January 28, 2016 - 10:26:31 AM - RamiroBack To Top(40531)

 Hi Jugal Shah !

Great information !! Now i could conect perfect to my sqlserver ! Thanks !!

 


Friday, September 11, 2015 - 11:26:56 AM - PauloBack To Top(38653)

Connection was forced to stop by an automatic Windows update requiring restart - usually Windows restore interrupted sessions but that was not the case with SQL Server - thanks again.


Friday, September 11, 2015 - 11:22:30 AM - PauloBack To Top(38652)

Clear and straight to the point. Thanks for your help...


Wednesday, August 19, 2015 - 7:03:02 AM - Dave JohnsonBack To Top(38473)

This is so good! Very clear, and very helpful. Thank you very much.


Thursday, June 18, 2015 - 9:32:56 PM - immortalBack To Top(37956)

You save the day for me. I am so happy i found this post.


Thursday, May 7, 2015 - 3:28:00 AM - MeenashiSundaramBack To Top(37114)

 

Thank you very much,

 Instead ip address i changed to localhost;its working, but why cant use ip address?


Tuesday, April 28, 2015 - 6:10:45 AM - NektariosBack To Top(37048)

Man you just saved my life !


Thursday, March 26, 2015 - 9:41:52 AM - MogaleBack To Top(36711)

Im trying to connect to sql machine remotely , and store data created in  a different server into my Sql server machine 


Sunday, December 21, 2014 - 5:17:00 AM - PriyankaBack To Top(35712)

Thank you so much. I was struggling to connect to SQL server for more than 3 hours. Your steps helped me to connect. Thanks..


Friday, December 19, 2014 - 1:51:08 PM - balukammriBack To Top(35691)

in my case, i had a standalone server, i changed the sql server port default port 1433 in configuration manager to some number and restarted the sql serve service to take effect,i was able to connect to the sql server through management studio if i login to the server. but i was not able to connect from my local machine through sql server, i was getting the error:

A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and

that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error: 5)

I checked and verified all the below

-Named pipes/TCP is enabled.
-Remote connections are allowed.
-Windows Firewall is off
-Created an exception for portin Windows Firewall( this was not necessary in my case as the server is in same subnet network).
-Enabled everything in SQL Server Configuration Manager.


then i chnaged back the port number to default 1433 and restarted the sql server service, and the issue got resolved and i am able to connect the sql server from my local management studio.


Wednesday, December 10, 2014 - 5:59:59 PM - goodyonelovesBack To Top(35563)

I have linked one of my SQL server, it was initially giving me errors named pipes provider could not open a connection to sql server 1326. Server is not accepting remote connections .... I just had a to add a firewall rule to allow inbound connections. 

Note: SQL browser service and named pipes might not be required. I am still able to connect to the server using local SQL authentication. Better to be secure than be sorry....:) so turn off the services you dont need.

Cheers....


Wednesday, December 3, 2014 - 11:31:58 AM - AJHBack To Top(35480)

Thank You!  I went through every step finding that step 6 was the issue.


Wednesday, October 15, 2014 - 4:15:04 AM - JLoBack To Top(34965)

THanks a lot !!

Good job ! :-)


Thursday, September 18, 2014 - 8:15:09 AM - HariBack To Top(34588)

 In my .net web application iam using 127.0.0.1 to connect to sql server and it works fine for some time. After some time i keep noticiing errors like the below

A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)

After that i noticed that the browser service is disabled. Is it possible that this is causing this error to happen. 


Thursday, August 28, 2014 - 2:29:20 AM - JohnBack To Top(34301)

Step 6 worked for me, thank you very much!!!


Thursday, August 21, 2014 - 1:56:19 AM - srikanth rathodBack To Top(34215)

Hi ,

Currently i am facing a issue with accessing the webservice for SQL 2012 SP1 reporting server for SCCM 2012 R2 instance , i am not able to access the weblink from the report manager server i.e URL http://server:80/reports_mssqlinstance , i am trying to access from SQL server.

ERROR when the link goes to IE is :Unable to connect the remote server.

I have verified below steps on sql 2012 sp1

1.telnet to 1433 is working fine, browser service is running fine.

2.port 80 is accessable , SPN is registered.

3.inbound rules created for 1433, 80 port.

Log shows me error :system.cannotUnloadappdomainexception:error while unloading appdomain (Exception from HRESULT:0x80131015.

Any solution for this, i have multiple instance on SQL 2012 server.

Please help

Thanks

 

 

 


Monday, August 4, 2014 - 3:05:01 AM - La_FBack To Top(33988)

Thank you, it worked to my


Wednesday, June 25, 2014 - 12:54:08 PM - DanBack To Top(32399)

Thank you for your post Jugal, really helpful and well written.

 

In case it helps other readers, a couple of note on my case: running SBS 2011 network, website server on separate Win7 machine, and SQL 2008 R2 on another machine. Configuration was done as in steps 6 , 7 and the ports in step 9. The environment had been fine for some time, but then all of a sudden the connections from the website server to sql server started dropping on occasion.

What was strange was that it was individual website connections, not an entire loss of availability. A couple of reboots seemed to solve things for a day or so, but then we lost all the connections and found that the Sql server instance was no longer visible on the network.

A few days before, we had done a bit of configuration work on the SBS2011 server (on default website and sharepoint), and renewed licences for Kaspersky anti virus on a number of machines.

With the help of Jugal's post, we have restored visibility of the Sql server instance by adding the sqlbrowser.exe exception to the firewall. I am still a bit confused as to how the environment was running in the first place without this exception, but pleased that I found this post and seemed to have it fixed! Thanks again.


Tuesday, June 17, 2014 - 1:28:56 PM - FSBack To Top(32287)

Step 6 solved my problem. I installed SQL Express 2014. The default of SQL Server Network TCP\IP and Named Pipe were Disabled. Thanks a lot for the excellent list.


Friday, June 13, 2014 - 8:32:47 AM - JagdishBack To Top(32229)

Thanks alot, step 6 solved my problem. This tutorial was helpful for me to solve the problem.


Monday, May 19, 2014 - 8:43:10 AM - Tony FooBack To Top(30836)

Excellent list. My problem was with #6. The TCP/IP port was blank.


Wednesday, April 23, 2014 - 9:43:38 AM - AmitBack To Top(30484)

 

You rock man ! Your tips were really useful and it resolved my issue. Keep up the great work. Thanks ! :)


Thursday, April 3, 2014 - 9:03:41 AM - Ruald VenterBack To Top(29960)

Thanks alot, step 6 solved my problem.


Friday, March 7, 2014 - 8:13:59 PM - ThirunavukkarasuBack To Top(29682)

Windows Server 2012, how do we do tthe above


Friday, February 21, 2014 - 5:45:11 AM - bhagyadeepBack To Top(29526)

helo sir

plz hlp me this type of error gnret in my apps

{"A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)"}


Monday, January 6, 2014 - 4:03:17 PM - arturBack To Top(27970)

Thanks so much. Great article and solve my problem with conection


Wednesday, October 16, 2013 - 3:32:26 AM - shaliniBack To Top(27162)

i am getting an error no 10061.. my sql server is also showing "stopped" value in SQL Server cofiguration manager..to resolve it i had tried to restart it but it doesn't start..


Friday, September 6, 2013 - 4:09:50 AM - williamBack To Top(26640)

 

great tutorial.thnx


Wednesday, August 7, 2013 - 8:59:54 AM - KristinaBack To Top(26132)

Great article and saved me a great deal of time.  Thanks !


Tuesday, May 28, 2013 - 10:40:25 AM - DBSQLBack To Top(25167)

Hi Jugal,

We need immedaite help on this!!!!

We have the same issue in one of our Windows 2003 Cluster enterprsie 64 bit. There are few instances to which we are able to connect to SQL Server by physically logging on to the server, but unable to connect from a client computer sometimes. After two thre attempts it connects. The error is same as emntioned abaove Error 26. The SQL server is 2005 enterprise edition.

Step1:Able to ping the physical server as well as instance,

Step 2:SQL service is up and running,

Step3:SQL Browser service enabled and running,

Step4:name is correct,as it connectes after some attempts.

Step5:SQLCMD –L returns the list of the servers and server name is there,

Step6:Named Pipes and TCP/IP protocol are enabled,checked tthrough SQL Server configuration manager

Step7:Allow remote connection to this server is checked,

Step8: error log has the entry as Server named pipe provider is ready to accept connection on [ \\.\pipe\$$\XYZ\MSSQL$XYZ\sql\query ].

Step9:firewall is disabled;

Step10: gives the output as "The SQL Network Interface library could not register the Service Principal Name (SPN) for the SQL Server service. Error: 0x2098, state: 15. Failure to register an SPN may cause integrated authentication to fall back to NTLM instead of Kerberos. This is an informational message. Further action is only required if Kerberos authentication is required by authentication policies"

 

 

Please advice!!


Thursday, May 9, 2013 - 2:24:09 PM - SharmaBack To Top(23845)

Thanks Jugal - this is a great post that allows systematic troubleshooting.

Step 6 identified the problem for me.

I know that I'll be referring back to this in the future.

 

10 out of 10 for accuracy.


Thursday, April 25, 2013 - 5:06:07 AM - PeteBack To Top(23553)

Thank you, the SPN error caused the malfunction. Restarting the instance solved the Problem

Pete


Wednesday, March 27, 2013 - 8:11:41 PM - AmitBack To Top(23042)

Can I link 2 different servers on the same network using the IP address instead of server name.

FOr example,

USE master;
GO
EXEC sp_addlinkedserver
   N'other server IP',
   N'SQL Server';
GO

 

My eventual goal is to be able to access data in databases on 2 differrent servers.


Monday, February 25, 2013 - 5:52:23 AM - cadjinacouBack To Top(22395)

Great article ! Thanks a lot for sharing this with us.


Wednesday, February 6, 2013 - 12:36:44 PM - DineshBack To Top(21951)

 

Thanks for sharing these type of information, it is really helpful and gives clear idea what to do next when you run into issues. I appericate it.


Thursday, December 6, 2012 - 1:13:40 AM - vikas Back To Top(20771)

 

 

Realy a great quality solution thanks


Thursday, October 25, 2012 - 8:51:17 AM - SharonBack To Top(20086)

Sourabh,

Are you running SQL 2008 or SQL 2008R2? Please read this MS article if you are to see if it applies to you. KB was last updated couple of days ago.  We have not confirmed the fix but we were able to implement the workaround until our next patch cycle.   Good luck.

http://support.microsoft.com/kb/2526552

Sharon


Thursday, October 18, 2012 - 8:26:25 AM - JugalBack To Top(19974)

Sorabh,

First you have to let me know the output of all the above steps. You can do the TELNET <IP ADDRESS> 1433 and check whether you are able to connect it from there or not, check your connection string, try to connect from SSMS


Thursday, October 18, 2012 - 3:06:01 AM - sourabh Back To Top(19966)

I execute the above 10 steps , still that i got error when i run the website "Startup Error: Unable to connect to the Database. Exception Message: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) (-1)"   and when i visit the url http://yaf/install/default.aspx  and test database connection the error comes "Failed to connect:A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)"  

 

What is the problem ? Please help me ? provide me the solution ?


Friday, September 21, 2012 - 6:10:11 AM - VaishaliBack To Top(19606)

Very useful post... Thanks a lot...


Monday, July 30, 2012 - 11:41:03 AM - ShubhankaraBack To Top(18855)

There is no SPN errors everything is fine


Monday, July 23, 2012 - 11:17:49 AM - JugalBack To Top(18751)

Have you checked the SPN by using SETSPN -L,

Can you check error log and make sure there shouldn't be any SPN failure error. Please test all the checklist mentioned above.

 

 

 


Friday, July 20, 2012 - 4:13:17 PM - Shubhankara Back To Top(18719)

Please find the below error message.

A network-related error or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: TCP Provider, error: 0 – No such host is known.) (Microsoft SQL Server, Error: 11001)

Domain account is configured in SPN with FQDN

select net_transport,auth_scheme from sys.dm_exec_connections where [email protected]@spid

Result set is -------------------TCP NTLM


Wednesday, July 11, 2012 - 12:37:36 AM - lakshmiBack To Top(18431)

in my server mechine sql server 2005 installed.the sql server shared through lan to client mechine.if i run the vb with sql server software means it shows the named pipe provider error :40.could open the connection.


Thursday, June 28, 2012 - 9:36:48 AM - JugalBack To Top(18249)

Can you check for the authenctication and SPN?, also copy the error message here.

setspn -L (To check the SPN)

select net_transport,auth_scheme from sys.dm_exec_connections where [email protected]@spid

 


Thursday, June 28, 2012 - 8:41:05 AM - Shubhankara Back To Top(18246)
  • It’s a cluster server, In which we are getting error while connecting to one of the Named instance, Its being used by dynamic port.

  • We are using SQL Server 2005+Sp3.

  • Windows Fire-Wall is disabled across the environment

  • SQL Server browser is always up and running

  • IP address and Hostname entry has been made in "/etc/host" file

  • Allow Remote connections to server is enabled

  • I'm able to ping and telnet from client machine

  • Namedpipes and TCP/IP is enabled

 

In spite of all I'm getting the error, Please help me out.

 


Wednesday, June 27, 2012 - 4:18:48 PM - JugalBack To Top(18230)

There are multiple reasons for the connection failure issue, can you check each step and let us know the result.


Wednesday, June 27, 2012 - 2:00:56 PM - Shubhankara Back To Top(18227)

Hi,

Please let me know if windows fire wall is Off, Then How can we stop this error.

--Shubhankara


Monday, June 25, 2012 - 1:10:35 PM - MarkBack To Top(18190)

Mr. Shah,

Thank you very much for your comprehensive post!  The troubleshooting steps you outlined allowed me to fix connection issues that have been troubling our office for a couple weeks!

-Mark
Town and Country Legal Associates

 


Friday, April 20, 2012 - 5:03:48 PM - PeterBack To Top(17026)

I noticed that IPv6 is causing massiv problems. 

I deactived it on the network stack but it did not work out. SQL / SQLExpress is still showing errors.

http://support.microsoft.com/kb/929852/

After that it worked pretty fine


Thursday, February 16, 2012 - 3:52:22 PM - Renato GonçalvesBack To Top(16044)
This tutorial was helpful for me to solve the problem, [A bug related to the network or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (Provider: TCP Provider, error:. 0 - No such host is known) (Microsoft SQL Server, Error: 11001)]. Step 5 used to solve my problem was putting in only the Server Name BRSPSRVSQL server name, and the right is BRSPSRVSQL \ SQLEXPRESS. Lacked the name of the Instance. When I used the command sqlcmd-L was able to view the SQL server name that was on the network with the instance. After putting in the full name BRSPSRVSQL \ SQLEXPRESS, it worked, I could connect. Thank you, Jugal. Hug!

Thursday, February 16, 2012 - 3:50:05 PM - Renato GonçalvesBack To Top(16043)
Este tutorial foi de grande ajuda para que eu pudesse resolver o problema, de [Um erro relacionadas à rede ou instância específica erro ocorreu ao estabelecer uma conexão ao SQL Server. O servidor não foi encontrado ou não estava acessível. Verifique se o nome da instância está correto e que o SQL Server está configurado para permitir conexões remotas. (Provider: TCP Provider, error:. 0 - Nenhum tal hospedar é conhecido) (Microsoft SQL Server, Error: 11001)]. Utilizei o Passo 5 para resolver o meu problema Estava colocando no Server Name apenas o nome do servidor BRSPSRVSQL, e o correto é BRSPSRVSQL\SQLEXPRESS. Faltava o nome da Instancia. Quando utilizei o comando sqlcmd -L, consegui visualizar o nome do servidor SQL que estava na rede com a instancia. Após colocar no nome completo BRSPSRVSQL\SQLEXPRESS, funcionou, consegui me conectar. Muito Obrigado, Jugal. Abraço!

Monday, December 5, 2011 - 11:36:36 AM - AtulBack To Top(15293)

First option resolve my error. Added a host file entry and it worked. Thanks a lot.

 


Monday, March 21, 2011 - 6:01:49 PM - David PiersonBack To Top(13265)

Great tip - thanks Jugal. Good comment from DeWitte also.

I would like to see another tip that covers this problem but in the case where you cannot get a login onto the box itself. There are two situations where this has happened to me, and diagnosing is harder.

1) On a LAN where you don't have remote desktop access to the SQL Server box

2) In a web hosting environment, where you have even less access using the usual tools.

 


Monday, March 21, 2011 - 4:22:53 PM - DeWitteBack To Top(13264)

I always like to use TELNET to help diagnose connectivity problems with SQL server.  I've seen cases where the SQL server was properly listening on port 1433 and the client machine could ping the IP address, but I was unable to connect to to SQL server.  Using a quick:

TELNET <IP ADDRESS> 1433

I was able to determine that port 1433 was not open between the host and client, even though we thought the firewall was functioning properly.  The problem turned out to be a secondary firewall which had taken control and the port change had not yet migrated over.  Admittedly, this is not the most sophisticated test as the result is either NO connection or a blank screen (blank screen means success), but it does quickly point out port issues.

 


SQL SERVER – FCB::Open failed: Could not open file Path for file number 2. OS error: 5(Access is denied.)

I assume a number of times when the machine is booted up, I am most likely to hit the Management Studio to work on some script or the other. But sometimes strange things happen and I get all sorts of error. There might be tons of reasons why SQL Server is not able to start. This blog is a result of a quick consulting engagement with one of my clients where I faced OS error.

They contact me to solve a production down situation where SQL was not starting after moving the database files from C Drive to D Drive. They shared the error message as below

SQL SERVER - FCB::Open failed: Could not open file Path for file number 2.  OS error: 5(Access is denied.) FCB-01

—————————
Services
—————————
Windows could not start the SQL Server (MSSQLSERVER) on Local Computer. For more information, review the System Event Log. If this is a non-Microsoft service, contact the service vendor, and refer to service-specific error code 3417.
—————————
OK
—————————

This is a very generic error. My first data which I always ask is to give me SQL Server ERRORLOG when SQL is not able to start.

SQL SERVER – Where is ERRORLOG? Various Ways to Find ERRORLOG Location

Here is what they shared with me

2016-06-14 06:28:06.15 spid4s Error: 17204, Severity: 16, State: 1.
2016-06-14 06:28:06.15 spid4s FCB::Open failed: Could not open file D:\Program Files\Microsoft SQL Server\MSSQL13.MSSQLSERVER\MSSQL\DATA\mastlog.ldf for file number 2. OS error: 5(Access is denied.).
2016-06-14 06:28:06.15 spid4s Error: 5120, Severity: 16, State: 101.
2016-06-14 06:28:06.15 spid4s Unable to open the physical file “D:\Program Files\Microsoft SQL Server\MSSQL13.MSSQLSERVER\MSSQL\DATA\mastlog.ldf”. Operating system error 5: “5(Access is denied.)”.
2016-06-14 06:28:06.15 spid4s SQL Server shutdown has been initiated

It means that SQL was shutting down because master database was not getting opened. You can also get a similar message in Event log which same error number.

Source: MSSQLSERVER
Date: 6/13/2015 2:24:39 PM
Event ID: 17204
Task Category: Server
Level: Error
Keywords: Classic
User: N/A
Computer: MySQLServer.MyCorp.local
Description:
FCB::Open failed: Could not open file D:\Program Files\Microsoft SQL Server\MSSQL11.MSSQLSERVER\MSSQL\DATA\mastlog.ldf for file number 2. OS error: 5(Access is denied.).

Our problem is OS error: 5(Access is denied.).

Fix for Error FCB Open

This is a Windows related issue where SQL Server does not have appropriate permission to the folder that contains the master database file and hence the error. Now, what should be done? Since we are having access denied, we need to give access. Here are the steps:

Click on the file (shown in the error message), right click and select properties. Then from within the “security” tab, verify that that the account for the SQL Server service has full control to this file. In my client’s case it was NT Service\MSSQLServer so we have given full control to that.

SQL SERVER - FCB::Open failed: Could not open file Path for file number 2.  OS error: 5(Access is denied.) FCB-02

Have you encountered a similar situation? What has been your troubleshooting steps? I would love to learn the same from you too.

Reference: Pinal Dave (https://blog.sqlauthority.com)

In this blog post, we are going to discuss how to solve the following error “Cannot bulk load because the file could not be opened. Operating system error code 5 (Access is denied.)”. Below you will find the reason why this error happened and the way to solve it.

Cannot bulk load because the file could not be opened. Operating system error code 5 (Access is denied.)

From the very beginning, it is necessary to mention that this error message can appear as a false and misleading error. This error message as a false error can appear when you use the T-SQL command “BULK INSERT” to import data from the text file to the SQL Server table. Let’s reproduce Cannot bulk load because the file could not be opened. Operating system error code 5 (Access is denied.) error message using the next script to create a sample data:

Create Database Adventureworks GO USE Adventureworks GO CREATE TABLE [dbo].[MyData]( [Id] [int] NOT NULL, [Name] [char](200) NULL, [ModDate] [datetime] NULL ) GO INSERT INTO MyData VALUES (1, 'Data.1', GETDATE()) GO INSERT INTO MyData VALUES (2, 'Data.2', GETDATE()) GO INSERT INTO MyData VALUES (3, 'Data.3', GETDATE()) GO

That was the first part of our test script. It’s time to export this data to the text file. We can do it using bcp (bulk copy program utility) command. And then, we will import the data back from the table. Use the following bcp.exe command to export the data.

bcp.exe Adventureworks..MyData out “c:\Temp.txt” -c -T -S.\SQL2014

After we have executed this command let’s insert the data back into the table using the next script:

USE Adventureworks GO BULK INSERT MyData FROM 'C:\Temp' WITH ( KEEPNULLS, FIRSTROW = 2, FIELDTERMINATOR ='\t', ROWTERMINATOR ='\n' )

After you will receive the following error message:

Msg 4861, Level 16, State 1, Line 1Cannot bulk load because the file "C:\Temp" could not be opened. Operating system error code 5(Access is denied.).

Cannot bulk load because the file could not be opened. Operating system error code 5 (Access is denied.)

Solution

The reason this error occurred was that we specified “C:\Temp” without the “.txt” extension. It was a false and misleading error. So to all you need to do to solve it just specify the correct name “C:\Temp.txt”.

But what to do if you specify the correct name and still receive this error? The reason that you receive this error message is that you are using SQL Server Authentication and the SQL Server hasn’t accessed the bulk load folder. All you need to do is to give SQL Server access to the folder.

Here is how you can grant all necessary permissions. Go to the folder and right-click, select “Properties” and open the “Security” tab. Click “Edit” then “Add” and press the “Advanced” button on the new window. After clicking “Find Now”. The last step you need to do is to find something like SQLServerMSSQLUser$UserName$SQLExpress and click ok, to all the dialogs opened.

Cannot bulk load because the file could not be opened. Operating system error code 5 (Access is denied.)

Press “OK” to apply all new permission settings.

That is all. That were two of the most popular cases of how to solve this issue and the reasons why it happens.

Categories SQL Errors

MySQL - How to solve 'Failed to open file error 2'

When you try to run an SQL file using command line program, you may encounter an error saying .

The following example tries to run the command and execute the file:

The code error means that MySQL can’t find the file that you want to execute.

To solve this error, you need to provide the absolute path to your file location.

You can find the absolute path of your file by opening the terminal in the directory or folder where your SQL file is located and run the command.

For example, here’s the absolute path to the directory where I save the file:

Now I just need to add the path to the file when I issue the source command:

Please note that you need to use forward slashes () to separate your path sections. Using back slashes () may cause the same error.

Here’s an example:

Even though the path is correct, MySQL expects a Unix-style path with forward slashes.

You should now be able to execute the SQL file. There are some other causes for error 2 in MySQL, so let’s take a look at that next.

Error 2 because of < or > symbols

Another thing that could cause the error is that you’re adding the greater than or less than symbol in front of the file path as shown below:

The greater than or less than symbol is commonly used to dump MySQL data to an SQL file or execute a script from the terminal without connecting to MySQL server.

You need to remove the symbol to execute the command without error.

Error 2 because of semicolon when using command

The command is an alias of the command that you can use to run an SQL file.

I don’t know if it’s a MySQL bug, but when you run the command with a semicolon at the end of the file path, you’ll get the error 2 response.

Take a look at the following example:

But the same error won’t happen when you use the command:

To solve this issue, you need to omit the semicolon when you’re using the command.

And that’s how you fix the MySQL issue.

Just keep in mind that the error is because MySQL can’t find the file you want to execute.

You probably need to check the path you passed into the command and see if there’s any typo that causes the error.


SP2-0310 unable to open file tips

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Resolving Access is Denied Error During SQL Server Operations (KBA1167)

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Applicable Delphix Versions

Click here to view the versions of the Delphix engine to which this article applies
Major ReleaseAll Sub Releases
6.06.0.0.0, 6.0.1.0, 6.0.1.1, 6.0.2.0, 6.0.2.1, 6.0.3.0, 6.0.3.1, 6.0.4.0, 6.0.4.1, 6.0.4.2, 6.0.5.0, 6.0.6.0, 6.0.6.1, 6.0.7.0

5.3

5.3.0.0, 5.3.0.1, 5.3.0.2, 5.3.0.3, 5.3.1.0, 5.3.1.1, 5.3.1.2, 5.3.2.0, 5.3.3.0, 5.3.3.1, 5.3.4.0, 5.3.5.0 5.3.6.0, 5.3.7.0, 5.3.7.1, 5.3.8.0, 5.3.8.1, 5.3.9.0

5.2

5.2.2.0, 5.2.2.1, 5.2.3.0, 5.2.4.0, 5.2.5.0, 5.2.5.1, 5.2.6.0, 5.2.6.1

5.1

5.1.0.0, 5.1.1.0, 5.1.2.0, 5.1.3.0, 5.1.4.0, 5.1.5.0, 5.1.5.1, 5.1.6.0, 5.1.7.0, 5.1.8.0, 5.1.8.1, 5.1.9.0, 5.1.10.0

5.0

5.0.1.0, 5.0.1.1, 5.0.2.0, 5.0.2.1, 5.0.2.2, 5.0.2.3, 5.0.3.0, 5.0.3.1, 5.0.4.0, 5.0.4.1 ,5.0.5.0, 5.0.5.1, 5.0.5.2, 5.0.5.3, 5.0.5.4

Troubleshooting Error: Access is Denied

In some situations, dSource and virtual database (VDB) operations initiated by the Delphix Engine may fail due to file permission (ACL) errors.

When this occurs, the following errors may appear in the Failed Actions sidebar:

    The above errors may be displayed after failure of the following operations:

    • Linking a dSource using the Delphix Managed Backups option
    • Taking a manual Snapshot, and selecting the "Copy-Only Backup" option
    • Enabling a Disabled dSource
    • Rewinding or Refreshing a VDB
    • Provisioning a VDB

    These errors indicate a permissions mismatch between an environment's SQL Server Instance Owner and the file permissions (ACLs) on files or directories managed by the Delphix Engine. These errors are raised by the SQL Server process, and will be visible in both the Actions sidebar within the Management interface and the SQL Server Error Log (ERRORLOG).

    Common Causes 

    Possible causes of this error include:

    • NTFS or File Sharing permissions do not meet Delphix requirements
    • The instance owner of one SQL Server instance has been changed
    • The Staging Instance has been configured to Use a Local Service Account
    • A Source Instance has been configured to use a Local User Account
    • A Source Instance has been configured to use a Virtual Account
    • A Source Instance is using the Local System or Network Service Account
    • The Staging or VDB snapshot taken contains incorrect file permissions

    Each of these causes is described below.

    NTFS or File Sharing Permissions do not Meet Delphix Requirements 

    The document SQL Server User Requirements describes the permissions required on backup files. Specifically, the following permissions are required to prevent "Access is Denied" error messages:

    • The Staging Instance Owner(the Windows account running the Staging SQL Server Instance) must be able to access the Windows File Share containing the source database server's backup files
    • The Staging Instance Owner must have NTFS file permissions to open the directories containing the backup file, and the backup file itself
    • The Delphix OS User configured for the Source Environment must be able to access the Windows File Share containing the backup file
    • The Delphix OSUser must have NTFS file permissions to open the directories containing the backup file, and the backup file itself

    The following diagram demonstrates the required access to backup files:

    clipboard_e50320a1366dae6b23eb6e286c59d358c.png

    To test whether the Staging Instance Owner has been granted the necessary permissions, you can run the following query on the Staging SQL Server Instance:

    RESTORE HEADERONLY FROM DISK='\\SOURCEHOSTNAME\SHARENAME\sourcebackupfilename.bak'

    Instance Owner has Changed 

    As part of the provisioning and refresh process, the Delphix Engine sets permissions on the database database files so that they can be read by the SQL Instance Owner.

    You can confirm the instance owner of Source and Target environments from the Delphix Engine's "Manage Environments" screen, in the "Databases" tab.

    accessdenied1.png

    This should match the owner of the instance as defined in SQL Server Configuration Manager or the Services control panel.

    Services.png

    The Delphix Engine will grant privileges to the user displayed in the Management interface - if this information is not current, the real instance owner will not have access to the files during linking or provisioning operations.

    To resolve this issue, you can Refresh the environment using the "Refresh Environment" button, on the lower right of the environment card:

    Windows_Target.png

    Once the environment has been successfully refreshed, you can retry the failed Action.

    VDB Start operations will not attempt to reset file permissions. If a VDB Start operation fails after making the above changes, it will be necessary to Disable and Enable the affected VDB.

    Staging Instance Configured to Use a Local Service Account

    dSource Snapshots using existing backups may fail if the Staging SQL Server Instance is running as a Local Service Account, such as , , or .

    As shown in the following diagram, both the Delphix OS User and the SQL Server instance access the Source database's backup file during a Snapshot operation.

    Staging Server_Source Server.png

    If the SQL Server instance owner is configured as a local service account, and attempts to access a file over the network, it will typically do so as the Local Computer Account (). If this does not have permissions to access the backup file, an error will be raised:

    Cannot open backup device '\\SOURCEHOSTNAME\SHARENAME\backupfile.bak'. Operating system error 5 (Access is denied.).

    To resolve this issue, we recommend configuring the Staging Instance to use an Active Directory user or service account, as described in our document Overview of Requirements for SQL Server Environments. Microsoft's documentation for modifying the service account is available at SCM Services - Change the Service Startup Account.

    Once the service account has been changed, the following additional steps will be required:

    • From the Environments screen of the Delphix Engine's Management interface, perform an Environment Refresh of the updated environment
    • Ensure that the new user account has permissions to read the Windows File Share
    • Ensure that the new user account has NTFS permissions to read the backup file and its parent directories

    Alternatively, you may be able to grant read permissions of the backup share and backup file to the Active Directory Computer Account (). Please check to ensure that this is in line with your organizational security policies.

    After making changes, you can run the following SQL query on the Staging SQL Server Instance to test whether permissions have been granted correctly, using the filename from your error message:

    RESTORE HEADERONLY FROM DISK='\\SOURCEHOSTNAME\SHARENAME\sourcebackupfilename.bak'

    Source Instance Configured to Use a Local User Account 

    Delphix Managed Backups and Copy-Only Backups will fail if the Source Instance is running as a Local User Account ().

    Copy-Only Backups performed by the Delphix Engine will need to write backup files to a network share (e.g. ). However, Local User accounts can not authenticate to other devices on the network, and attempted backups to SMB (Windows File Sharing) locations will fail:

    To resolve this issue, reconfigure the Source Environment's SQL Server instance to use a supported user account (Domain User, Local System, Network Service, or Managed Service Account), and refresh the Source Environment from the Delphix Engine's Management interface. Once this is done, you can retry the linking operation.

    If this is not feasible, consider taking a backup to a shared folder instead of performing Delphix Managed Backups.

    Source Instance Configured to Use a Virtual Account 

    Delphix Managed Backups and Copy-Only Backups may fail if the Source Instance is running as a Virtual Account, for example:

    •  ; or

    When attempting a backup to a SMB (Windows File Sharing) share, these accounts attempt to authenticate using a special Active Directory "Computer Account".

    However, the Delphix Engine does not currently map Virtual Service Accounts to the computer name when granting permissions, and attempts to perform a a Copy-Only Backup will result in a permissions error:

    To resolve this issue, reconfigure the Source Environment's SQL Server instance to use a supported user account (Domain User, Local System, Network Service, or Managed Service Account), and refresh the Source Environment from the Delphix Engine's Management interface. Once this is done, you can retry the linking operation.

    If this is not feasible, consider taking a backup to a shared folder instead of performing Delphix Managed Backups.

    A Source Instance is using the Local System or Network Service account 

    Delphix Managed Backups and Copy-Only Backups may fail if both:

    • The Source Instance is running as the  or  account; AND
    • The Staging Environment has been added using an IP address or a hostname alias

    When linking a dSource using the "Delphix Managed Backups" option, or taking a snapshot using a Copy-Only Backup, the Delphix Engine creates a SMB (Windows file sharing) share on the Staging server, and initiates a backup from the dSource to this shared folder.

    If the dSource's SQL Server Instance is running as the  or  accounts, the Delphix Engine will detect this, and grant permissions on the Windows share to a special Active Directory "Computer Account".

    However, the backup will still fail if the Staging server has been added to the Delphix Engine using an IP Address or alias, instead of the host's correct Fully Qualified Domain Name (FQDN). You can confirm this in the Host Address field of the Environments Page from the Delphix Engine's Management interface.

    When these conditions are present, the Source Instance will attempt to connect to the Staging Server using a non-privileged Anonymous account and the connection will fail:

    To resolve this issue, either:

    • Modify the Host Address for the Staging Environment to use a Fully Qualified Domain Name; OR
    • Reconfigure the Source Environment's SQL Server Instance to use an Active Directory account, and Refresh the Environment from the Delphix Engine's Management interface

    Alternatively, consider taking a backup to a shared folder instead of performing Delphix Managed Backups.

    Database Snapshots Contain Incorrect File Permissions 

    In Delphix Engine releases 4.3.5.0, 4.3.5.1, 5.0 (fixed in 5.0.4.1), and 5.1.0.0 (fixed in 5.1.4.0), issues may occur during SQL Server provisioning operations in some situations, such as:

    • The source server is running SQL Server 2005 or 2008, and the target server is a newer version than the source;
    • The target server uses a different instance name to the staging server, and you are attempting to provision a VDB;
    • You are provisioning from a snapshot taken using an earlier version of the Delphix Engine

    This is the result of a timing issue, where the Delphix Engine may take a snapshot of the database files on the Staging/Pre-Provisioning server before the correct file permissions have been synchronized to disk.

    This is a known issue in the product versions listed above. If you encounter this issue, please consider an upgrade to a newer version of the Delphix Engine. Delphix Engine releases 5.1.8.0 and later should resolve all known issues with file permissions.

    Related Articles

    External Links:

    Resolving could not open a connection to SQL Server errors


    Comments For This Article




    Friday, July 22, 2022 - 5:17:11 PM - DemosthenesBack To Top(90306)
    Great article! Thank you very much. Very helpful.

    Wednesday, July 13, 2022 - 4:25:18 AM - RanjithBack To Top(90251)
    I am getting error :

    can not connect to in_templ< -816 >, SQLSTATE = 08001 Can you please help to resolve this issue

    Monday, October 4, 2021 - 7:39:25 PM - MeliandahBack To Top(89304)
    So, i had troubles since 2 days but everything was nicei didnt found problem until.
    in fact : 1 problem isnt solved in your tutorial, it's the missing package from NuGet for Universal Windows Applications :)
    Even adding external references from MySql DLLs don't workfor UWPgo to NuGet package management (or manually in windows selection in VS) and add MySql.Data (or any other package who manage MySql).
    Then all functions will work \o/ .

    Friday, October 1, 2021 - 7:17:49 PM - robBack To Top(89295)
    man. thank you so much! connection error status=401 was going crazy and it was the sql server had the firewall on and didn't allow any connections to it. Never thought about it until this article, thanks again!!

    Wednesday, July 28, 2021 - 11:45:18 AM - EladBack To Top(89067)
    didnt solve my problem at all
    What can I do ?
    https://docs.microsoft.com/en-us/answers/questions/493149/error-40-could-not-open-a-connection-to-sql-server-1.html

    Wednesday, July 28, 2021 - 11:44:32 AM - EladBack To Top(89066)
    Sorry but that didnt help me, in my windows the SQL SERVER looks different.
    I have the same error- Error: 40- could not open a connection to SQL Server - in Visual Studio 2019

    Tuesday, June 15, 2021 - 12:18:04 PM - Derek MartindaleBack To Top(88857)
    Fixed my problem!
    Very clear, very detailed instructions.
    Thank you

    Tuesday, sql error cant open file, February 9, 2021 - 9:40:00 PM - Glenn Orlando PringleBack To Top(88202)
    Thanks!!!
    You helped me figure out my issue

    Tuesday, February 2, 2021 - 10:21:20 PM - DominicBack To Top(88140)
    When the browser service is turned off and you have a unique port number for the SQL Server, consider that you require an alias name when trying to connect to the hostname only in SSMS. Within the SQL Configuration Manager under the SQL Native Client >> Aliases section for both native client sections add the alias name the same as the hostname along with the unique port number.

    Saturday, January 2, 2021 - 6:12:53 PM - Ben Z.Back To Top(87994)
    Awesome! You resolved my issue!

    Monday, November 16, 2020 - 7:54:13 AM - Vanitha SundaramBack To Top(87799)
    Hi All,
    I tried all the above remedies. But none worked. Please help on it.
    Connect to Server ------------------------------ Cannot connect to DESKTOP-JQ2TJQV. ------------------------------ ADDITIONAL INFORMATION: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error: 2) For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft%20SQL%20Server&EvtSrc=MSSQLServer&EvtID=2&LinkId=20476 ------------------------------ The system cannot find the file specified ------------------------------ BUTTONS: OK -----------------------------

    Tuesday, September sql error cant open file, 2020 - 2:01:12 PM - Emmanuel IkonneBack To Top(86481)
    SQL Server Browser was the sql server error 17189 for me.

    Saturday, July 18, 2020 - 3:51:53 PM - Bjorgen EatingerBack To Top(86153)

    Fantastic article, but you forgot a really important item to sql error cant open file, especially if the database was just copied from qm fsm error asa 5520 server to another.

    The PASSWORD.  I was able to resolve my problem by using your "XP_READERRORLOG" hint, and I found the following in the logs:

    2020-07-18 12:18:37.630 Logon Login failed for user 'xxxx'. Reason: Password did not match that for the login provided. [CLIENT: 10.1.252.250]

    No idea why Microsoft wasted hours of my time with this very stupid issue, as I did copy the logins from the old server to the new one.


    Wednesday, February 26, sql error cant open file, 2020 - 8:35:07 AM - AdrianoBack To Top(84812)

    Hi Jugal Shah, excellent article! I’m facing a problem that perhaps you can help me. I have a SQL server registered with a non-default instance name. I’ve done everything you explained in your “Resolving could not open a connection to SQL Server errors” article. Let’s say SERVER\INSTANCE. In the server itself I can only access, SSMS for example, using server\instance. It doesn’t work IP Adress\Instance as it oki c330dn error code 069 when working with another servers. It’s also curious that the clients can access only with the IP address without informing the instance name.

    Regards!


    Thursday, February 20, 2020 - 8:06:35 PM - William WoolmerBack To Top(84683)

    Legendary sequence here, have used them repeatedly over the years.

    Thank you


    Tuesday, January 28, 2020 - 7:58:11 PM - Linda K.Back To Top(84022)

    Dear Jugal Shah, Thank you so much for posting this. I am pretty much retired and haven't moved a database system to a new server since 2007. My last client decided to upgrade and it's been a bit of struggle remembering all the details that I once had down pat. My system administrator came across your article and resolved our problem by turning on Named Pipes. I'd completely forgotten about it. Such a fundamental thing that you never have to think about except when setting up a new system. Thanks again.


    Friday, September 20, 2019 - 9:50:13 AM - MichaelBack To Top(82520)

    A staff member had the same error on his computer but when I logged on to his computer, my SQL connection worked fine.

    That implied some sort of permissions discrepancy. I gave him the prefailure raw_read_error_rate 1 permissions as my account and he still got the error.

    After doing some more digging, I found some entries and keys in my registry's HKEY_CURRENT user that pointed to the SQL database.

    I exported the settings, saved it as a .REG file and imported them into the staff member's registry under his Windows logon.

    Eureka! Success!


    Wednesday, February 20, 2019 - 9:43:55 PM - SIBack To Top(79076)

    Thank you. Manage error c-icap - conf not found resolve issues on SQL server using your website guide, sql error cant open file.


    Thursday, December 6, 2018 - 4:16:42 PM - AllanBack To Top(78417)

     Great solutions. it worked for me, in my case open port 1433 on firewall


    Thursday, January 4, 2018 - 4:57:29 AM - RaghuBack To Top(74752)

     Thanks for the detailed steps issue resolved after enabling SQL browser

     


    Friday, November 10, 2017 - 10:28:45 PM - mrduncleBack To Top(69555)

    For me, take your pick:

    - SQL Server Browser not running

    - firewall not set up correctly

    but it doesn't matter due to breadth of the issues covered in this comprehensive guide because I can now connect.  Only comment is that the Firewall section may need an update because current versions of windows sql error cant open file my case Windows 10) doesn't look much like those dialogs. Thanks for taking the time to compile this thorough troubleshooting guide.


    Wednesday, September 6, 2017 - 4:56:04 PM - Franklin MedinaBack To Top(65953)

     

    Clear, understandable

    Thanks!


    Monday, July 17, 2017 - 8:20:17 AM - SandeepBack To Top(59467)

     Step 5 worked, thank you so much

     


    Wednesday, May 3, 2017 - 11:23:20 AM - Josko ZlatarBack To Top(55414)

     

     Thank you for this really helpful cookbook!

     


    Monday, August 1, 2016 - 9:39:43 AM - Munish GumberBack To Top(43019)

    thanks man. you saved my time.great!!


    Sunday, June 19, 2016 - 7:36:21 AM - GemoreBack To Top(41721)

    Thank you man, you saved my night.

     

     


    Thursday, June 9, 2016 - 8:20:59 AM - AtulBack To Top(41651)

     I also faced the same issue.

    Root Cause: I found that SQL servr agent was not running.

    After investigation I found that SQL server Agent process was not running due to password mismatch.

    Resoltion : I update the my current password for all the process of SQL Server.

    Steps : Control Panel > Adminstrative Tool > Services > Navigate to all SQL Processes and Update the password under properties window > logon tab.

     


    Tuesday, June 7, 2016 - 11:09:54 PM - Jamal AfrozBack To Top(41633)

     I get Idea from this Article. I Simply changed IP address in place of name instance for data Source.

    e.g. "SQLConnString" value="Data Source= IPAddress"

    It work for me.

    Thanks.

    Jamal

     


    Tuesday, March 1, 2016 - 2:01:32 AM - Ashish RohitBack To Top(40824)

     Thanks for 3194 error ipod restore article, It solved my connection problem

     


    Friday, February 12, 2016 - 2:52:04 AM - Narender GorigeBack To Top(40659)

    Bull's eye, sql error cant open file. Spot on. Resolved my issue

     


    Friday, February 5, compile error byref argument type mismatch vba - 7:01:02 AM - ramrajBack To Top(40605)

     

     

     

    A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (.Net SqlClient Data Provider)

    This error  comming what can i do? please halp me?

     


    Thursday, January 28, 2016 - 10:26:31 AM - RamiroBack To Top(40531)

     Hi Jugal Shah !

    Great information !! Now i could conect perfect to my sqlserver ! Thanks !!

     


    Friday, September 11, 2015 - 11:26:56 AM - PauloBack To Top(38653)

    Connection was forced to stop by an automatic Windows update requiring restart - usually Windows restore interrupted sessions but that was not the case with SQL Server - thanks again.


    Friday, September 11, 2015 - 11:22:30 AM - PauloBack To Top(38652)

    Clear and straight to the point. Thanks for your help.


    Wednesday, August 19, 2015 - 7:03:02 AM - Dave JohnsonBack To Top(38473)

    This is so good! Very clear, and very helpful. Thank you very much.


    Thursday, June 18, 2015 - 9:32:56 PM - immortalBack To Top(37956)

    You save the day for me. I am so happy i found this post.


    Thursday, May 7, 2015 - 3:28:00 AM - MeenashiSundaramBack To Top(37114)

     

    Thank you very much,

     Instead ip address i changed to localhost;its working, but why cant use ip address?


    Tuesday, April 28, 2015 - 6:10:45 AM - NektariosBack To Top(37048)

    Man you just saved my life !


    Thursday, March 26, 2015 - 9:41:52 AM - MogaleBack To Top(36711)

    Im trying to connect to sql machine remotelyand store data created in  a different server into my Sql server machine 


    Sunday, December 21, 2014 - 5:17:00 AM - PriyankaBack To Top(35712)

    Thank you so much. I was struggling to connect to SQL server for more than 3 hours. Your steps helped me to connect. Thanks.


    Friday, December 19, 2014 - 1:51:08 Terror.strike.close.quarters. minimum requirements - balukammriBack To Top(35691)

    in my case, i had a standalone server, i changed the sql server port default port 1433 in configuration manager to some number and restarted the sql serve service to take effect,i was able to connect to the sql server through management studio if i login to the server. but i was not able to connect from my local machine through sql server, sql error cant open file was getting the error:

    A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and

    that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error: 5)

    I checked and verified all the below

    -Named pipes/TCP is enabled.
    -Remote connections are allowed.
    -Windows Firewall is off
    -Created an exception for portin Windows Firewall( this was not necessary in my case as the server is in same subnet network).
    -Enabled everything in SQL Server Configuration Manager.


    then i chnaged back the port number to default 1433 and restarted the sql server service, and the sql error cant open file got resolved and i am able to connect the sql server from my local management studio.


    Wednesday, December 10, 2014 - 5:59:59 PM - goodyonelovesBack To Top(35563)

    I have linked one of my SQL server, it was initially giving me errors named pipes provider could not open a connection to sql server 1326. Server is not accepting remote connections . I just had a to add a firewall rule to allow inbound connections. 

    Note: SQL browser service and named pipes might not be required. I am still able to connect to the server using local SQL authentication. Better to be secure than be sorry.:) so turn off the services you dont need.

    Cheers.


    Wednesday, December 3, 2014 - 11:31:58 AM - AJHBack To Top(35480)

    Thank You!  I went through every step finding that step 6 was the issue.


    Wednesday, October 15, sql error cant open file, 2014 - 4:15:04 AM - JLoBack To Top(34965)

    THanks a lot !!

    Good job ! :-)


    Thursday, September 18, 2014 - 8:15:09 AM - HariBack To Top(34588)

     In my .net web application iam using 127.0.0.1 to connect to sql server and it works fine for some time. After some time i keep noticiing errors like the below

    A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is sql error cant open file to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)

    After that i noticed that the browser service is disabled. Is it possible that this is causing this error to happen. 


    Thursday, August 28, 2014 - 2:29:20 AM - JohnBack To Top(34301)

    Step 6 worked for me, thank sql error cant open file very much!!!


    Thursday, August 21, 2014 - 1:56:19 AM - srikanth rathodBack To Top(34215)

    Hi ,

    Currently i am facing a issue with accessing the webservice for SQL 2012 SP1 reporting server for SCCM 2012 R2 instancei am not able to access the weblink from the report manager server i.e URL http://server:80/reports_mssqlinstancei am trying to access from SQL server.

    ERROR when the link goes to IE is :Unable to connect the remote server.

    I have verified below sql error cant open file on sql 2012 sp1

    1.telnet to 1433 is working fine, browser service is running fine.

    2.port 80 is accessableSPN is registered.

    3.inbound rules created for 1433, sql error cant open file, 80 port.

    Log shows me error :system.cannotUnloadappdomainexception:error while unloading appdomain (Exception from HRESULT:0x80131015.

    Any solution for this, i have multiple instance on SQL 2012 server.

    Please help

    Thanks

     

     

     


    Monday, sql error cant open file, August 4, 2014 - 3:05:01 AM - La_FBack To Top(33988)

    Thank you, it worked to my


    Wednesday, sql error cant open file, June 25, 2014 - 12:54:08 PM - DanBack To Top(32399)

    Thank you for your post Jugal, really helpful and well written.

     

    In case it helps other readers, a couple of note on my case: running SBS 2011 network, website server on separate Win7 machine, and SQL 2008 R2 on another machine. Configuration was done as in steps 67 and the ports in step 9. The environment had been fine for some time, but then all of a sudden the connections from the website server to sql server started dropping on occasion.

    What was strange was that it was individual website connections, not an entire loss of availability. A couple of reboots seemed to solve things for a day or so, sql error cant open file, but then we lost all the connections and found that the Sql server instance was no longer visible on the network.

    A few days before, we had done a bit of configuration work on the SBS2011 server (on default website and sharepoint), and renewed licences for Kaspersky anti virus on a number of machines.

    With the help of Jugal's post, we have restored visibility of the Sql server instance by adding the sqlbrowser.exe exception to the firewall. I am still a bit confused as to how the environment was running in the first place without this exception, but pleased that I found this post and seemed to have it fixed! Thanks again.


    Tuesday, June 17, 2014 - 1:28:56 PM - FSBack To Top(32287)

    Step 6 solved my problem. I installed SQL Express 2014. The default error exit delayed from previous errors freebsd SQL Server Network TCP\IP and Named Pipe were Disabled. Thanks a lot for the excellent list.


    Friday, June 13, 2014 - 8:32:47 AM - JagdishBack To Top(32229)

    Thanks alot, diablo 3 error 33 6 solved my problem. This tutorial was helpful for me to solve the problem.


    Monday, May 19, 2014 - 8:43:10 AM - Tony FooBack To Top(30836)

    Excellent list. My problem was with #6. The TCP/IP port was blank.


    Wednesday, April 23, 2014 - 9:43:38 AM - AmitBack To Top(30484)

     

    You rock man ! Your tips were really useful and it resolved my issue. Keep up the great work. Thanks ! :)


    Thursday, April 3, 2014 - 9:03:41 AM - Ruald VenterBack To Top(29960)

    Thanks alot, step 6 solved my problem.


    Friday, March 7, 2014 - 8:13:59 PM - ThirunavukkarasuBack To Top(29682)

    Windows Server 2012, how do we do tthe above


    Friday, February 21, 2014 - 5:45:11 AM - bhagyadeepBack To Top(29526)

    helo sir

    plz hlp me this type of error gnret in my apps

    {"A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)"}


    Monday, January 6, 2014 - 4:03:17 PM - arturBack To Top(27970)

    Thanks so much. Great article and solve my problem with conection


    Wednesday, October 16, 2013 - 3:32:26 AM - shaliniBack To Top(27162)

    i am getting an error no 10061. my sql server is also showing "stopped" value in SQL Server cofiguration manager.to resolve it i had tried to restart it but it doesn't start.


    Friday, September 6, 2013 - 4:09:50 AM - williamBack To Top(26640)

     

    great tutorial.thnx


    Wednesday, August 7, 2013 - 8:59:54 AM - KristinaBack To Top(26132)

    Great article and saved me a great deal of time.  Thanks !


    Tuesday, May 28, 2013 - 10:40:25 AM - DBSQLBack To Top(25167)

    Hi Jugal,

    We need immedaite help on this!!!!

    We have the same issue in one of our Windows 2003 Cluster enterprsie 64 bit. There are few instances to which we are able to connect to SQL Server by physically logging on to the server, but unable to connect from a client computer sometimes. After two thre attempts it connects. The error is same as emntioned abaove Error 26. The SQL server is 2005 enterprise edition.

    Step1:Able to ping the physical server as well as instance,

    Step 2:SQL service is up and running,

    Step3:SQL Browser service enabled and running,

    Step4:name is correct,as it connectes after some attempts.

    Step5:SQLCMD –L returns the list of the servers and server name is there,

    Step6:Named Pipes and TCP/IP protocol are enabled,checked tthrough SQL Server configuration manager

    Step7:Allow remote connection to this server is checked,

    Step8: error log has the entry as Server named pipe provider is ready to accept connection on [ \\.\pipe\$$\XYZ\MSSQL$XYZ\sql\query ].

    Step9:firewall is disabled;

    Step10: gives the output as "The SQL Network Interface library could not register the Service Principal Name (SPN) for the SQL Server service. Error: 0x2098, state: 15. Failure to register an SPN may cause integrated authentication to fall back to NTLM instead of Kerberos. This is an informational message. Further action is only required if Kerberos authentication is required by authentication policies"

     

     

    Please advice!!


    Thursday, May 9, 2013 - 2:24:09 PM - SharmaBack To Top(23845)

    Thanks Jugal - this is a great post that allows systematic troubleshooting.

    Step 6 identified the problem for me.

    I know that I'll be referring back to this in the future.

     

    10 out of 10 for accuracy.


    Thursday, April 25, 2013 - 5:06:07 AM - PeteBack To Top(23553)

    Thank you, the SPN error caused the malfunction. Restarting the instance solved the Problem

    Pete


    Wednesday, sql error cant open file, March 27, 2013 - 8:11:41 PM - AmitBack To Top(23042)

    Can I link 2 different servers on the same network using the IP address instead of server name.

    FOr example,

    USE master;
    GO
    EXEC sp_addlinkedserver
       N'other server IP',
       N'SQL Server';
    GO

     

    My eventual goal is to be able to access data in databases on 2 differrent servers.


    Monday, February 25, 2013 - 5:52:23 AM - cadjinacouBack To Top(22395)

    Great article ! Thanks a lot for sharing this with us.


    Wednesday, February 6, 2013 - 12:36:44 PM - DineshBack To Top(21951)

     

    Thanks for sharing these type of information, it is really helpful and gives clear idea what to do next when you run into issues. I appericate it.


    Thursday, December 6, 2012 - 1:13:40 AM - vikas Back To Top(20771)

     

     

    Realy a great quality solution thanks


    Thursday, October 25, 2012 - 8:51:17 AM - SharonBack To Top(20086)

    Sourabh,

    Are you running SQL 2008 or SQL 2008R2? Please read this MS article if you are to see if it applies to you. KB was last updated couple of days ago.  We have not confirmed the fix but we were able to implement the workaround until our next patch cycle.   Good luck.

    http://support.microsoft.com/kb/2526552

    Sharon


    Thursday, October 18, 2012 - 8:26:25 AM - JugalBack To Top(19974)

    Sorabh,

    First you have to let me know the output of all the above steps, sql error cant open file. You can do the TELNET <IP ADDRESS> 1433 and check whether you are able to connect it from there or not, check your connection string, try to connect from SSMS


    Thursday, October 18, 2012 - 3:06:01 AM - sourabh Back To Top(19966)

    I execute the above 10 stepsstill that i got error when i run the website "Startup Error: Unable to connect to the Database. Exception Message: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) (-1)"   and when i visit the url http://yaf/install/default.aspx  and test database connection the error comes "Failed to connect:A network-related or instance-specific error occurred while establishing a connection to SQL Server. Sql error cant open file server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)"  

     

    What is the problem ? Please help me ? provide me the solution ?


    Friday, September 21, 2012 - 6:10:11 AM - VaishaliBack To Top(19606)

    Very useful post. Thanks a lot.


    Monday, July 30, 2012 - 11:41:03 AM - ShubhankaraBack To Top(18855)

    There is no SPN errors everything is fine


    Monday, July 23, 2012 - 11:17:49 AM - JugalBack To Top(18751)

    Have you checked the SPN by using SETSPN -L,

    Can you check error log and make sure there shouldn't be any SPN failure error. Please test all the checklist mentioned above.

     

     

     


    Friday, July 20, 2012 - 4:13:17 PM - Shubhankara Back To Top(18719)

    Please find the below error message.

    A network-related error or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name cpu fan error asus p7q57-m d0 correct and that SQL Server is configured to allow remote connections. (provider: TCP Provider, error: 0 – No such host is known.) (Microsoft SQL Server, Error: 11001)

    Domain account is configured in SPN with FQDN

    select net_transport,auth_scheme from sys.dm_exec_connections where [email protected]@spid

    Result set is -------------------TCP NTLM


    Wednesday, July 11, 2012 - 12:37:36 AM - lakshmiBack To Top(18431)

    in my server sql error cant open file sql server 2005 installed.the sql server shared through lan to client mechine.if i run the vb with sql server software means it shows the named pipe provider error :40.could open the connection.


    Thursday, June 28, 2012 - 9:36:48 AM - JugalBack To Top(18249)

    Can sql error cant open file check for the authenctication and SPN?, also copy the error message here.

    setspn -L (To check the SPN)

    select net_transport,auth_scheme from sys.dm_exec_connections where [email protected]@spid

     


    Thursday, June 28, 2012 - 8:41:05 AM - Shubhankara Back To Top(18246)
    • It’s a cluster server, In which we are getting error while connecting to one of the Named instance, Its being used by dynamic port.

    • We are using SQL Server 2005+Sp3.

    • Windows Fire-Wall is error please reboot jailebreak across the environment

    • SQL Server browser is always up and running

    • IP address and Hostname entry has been made in "/etc/host" file

    • Allow Remote connections to server is enabled

    • I'm able to ping and telnet from client machine

    • Namedpipes and TCP/IP is enabled

     

    In spite of all I'm getting the error, Please help me out.

     


    Wednesday, June 27, 2012 - 4:18:48 PM - JugalBack To Top(18230)

    There are multiple reasons for the connection failure issue, can you check each step and let us know the result.


    Wednesday, June 27, 2012 - 2:00:56 PM - Shubhankara Back To Top(18227)

    Hi,

    Please let me know if windows fire wall is Off, Then How can we stop this error.

    --Shubhankara


    Monday, June 25, 2012 - 1:10:35 PM - MarkBack To Top(18190)
    hp 1200 pcl xl error windows xp. Shah,

    Thank you very much for your comprehensive post!  The troubleshooting steps you outlined allowed me to fix connection issues that have been troubling our office for a couple weeks!

    -Mark
    Town and Country Legal Associates

     


    Friday, April 20, 2012 - 5:03:48 PM - PeterBack To Top(17026)

    I noticed that IPv6 is causing massiv problems. 

    I deactived it on the network stack but it did not work out. SQL / SQLExpress is still showing errors.

    http://support.microsoft.com/kb/929852/

    After that it worked pretty fine


    Thursday, February 16, 2012 - 3:52:22 PM - Renato GonçalvesBack To Top(16044)
    This tutorial was helpful for me to solve the problem, [A bug related to the network or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (Provider: TCP Provider, error:. 0 - No such host is known) (Microsoft SQL Server, Error: 11001)]. Step 5 used to solve my problem was putting in only the Server Name BRSPSRVSQL server name, and the sql error cant open file is BRSPSRVSQL \ SQLEXPRESS. Lacked the name of the Instance. When I used the command sqlcmd-L was able to view the SQL server name that was on the network with the instance. After putting in the full name BRSPSRVSQL \ SQLEXPRESS, it worked, I could connect. Thank you, Jugal. Hug!

    Thursday, February 16, 2012 - 3:50:05 PM - Renato GonçalvesBack To Top(16043)
    Este tutorial foi de grande ajuda para que eu pudesse resolver o problema, de [Um erro relacionadas à rede ou instância específica erro ocorreu ao estabelecer uma conexão ao SQL Server. O servidor não foi encontrado ou não estava acessível. Verifique se o nome da instância está correto e que o SQL Server está configurado para permitir conexões remotas. (Provider: TCP Provider, error:. 0 - Nenhum tal hospedar é conhecido) (Microsoft SQL Server, Error: 11001)]. Utilizei o Passo 5 para resolver o meu problema Estava colocando no Server Name apenas o nome do servidor BRSPSRVSQL, e sql error cant open file correto é BRSPSRVSQL\SQLEXPRESS. Faltava o nome da Instancia. Quando utilizei o comando sqlcmd -L, consegui visualizar o nome do servidor SQL que estava na rede com a instancia. Após colocar no nome completo BRSPSRVSQL\SQLEXPRESS, funcionou, consegui me conectar. Muito Obrigado, Jugal. Abraço!

    Monday, December 5, 2011 - 11:36:36 AM - AtulBack To Top(15293)

    First option resolve my error. Added a host file entry and it worked. Thanks a lot.

     


    Monday, March 21, 2011 - 6:01:49 PM - David PiersonBack To Top(13265)

    Great tip - thanks Jugal, sql error cant open file. Good comment from DeWitte also.

    I would like to see another tip that covers this problem but in the case where you cannot get a login onto the box itself. There are two situations where this has happened to me, and diagnosing is harder.

    1) On a LAN where you don't have remote desktop access to the SQL Server box

    2) In a web hosting environment, where you have even less access using the usual tools.

     


    Monday, March 21, 2011 - 4:22:53 PM - DeWitteBack To Top(13264)

    I always like to use TELNET to help diagnose connectivity problems with SQL server.  I've seen cases where the SQL server was properly listening on port 1433 and the client machine could ping the IP address, but I was unable to connect to to SQL server.  Using a quick:

    TELNET <IP ADDRESS> 1433

    I was able to determine that port 1433 was not open between the host and client, even though we thought the firewall was functioning properly.  The problem turned out to be a secondary firewall which had taken control and the port change had not yet migrated over.  Admittedly, this is not the most sophisticated test as the result is either NO connection or a blank screen (blank screen means success), but it does quickly point out port issues.

     


    Symptoms

    Consider the following scenario:

    • Assume that you have a FileTable in Microsoft SQL Server.

    • You try to open a FileTable directory by using SSMS, File Explorer or Windows API.

    • When an application performs directory enumeration for the FileTable directory, the request call can be intercepted by a file system filter driver present in the client machine. The FileInformationClass request parameter can be changed to use FILE_ID_EXTD_DIR_INFORMATION instead. In this case, the client may receive an ERROR_FILE_NOT_FOUND (0x2) as a response from SQL Server.

    In this situation, you may receive an error message that resembles the following on Windows:

    ERROR_FILE_NOT_FOUND (0x2)

    "The File location cannot be opened. Either access is not enabled or you do not have permissions for the same."

    Status

    Microsoft has confirmed that this is a problem in the Microsoft products that are sql error cant open file in the "Applies to" section.

    Resolution

    This issue is fixed in the following cumulative updates for SQL Server:

    About cumulative updates for SQL Server:

    Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with application signature timestamp expirederror previous cumulative update. Check out the latest cumulative updates for SQL Server:

    References

    Learn about the terminology that Microsoft uses to describe software updates.

    Getting Error "Cannot open the datafile" upon execution.

    You must use a Raw File Destination component to create a raw file.

    Raw Files are in a binary format that is native to SQL server and SSIS. These are used to hold data in transitional forms on disk in places in which you do not need to read the data by any other means. For example, if you have a package that runs every hour that loads data into a folder from one database, and then another package that is run on-demand to load this data into another database, you may want to use a raw file. The advantage is that since SSIS does not need to parse the file like it would a text file, it can load very fast and use less system resources in the process.

    If the component you are getting the error from is a destination component, there is a property to indicate if it should create the file when the package runs - make sure this is set properly.

    If the component is a raw file source component, you need to create a raw file that has the correct columns and data types by running a package to generate the raw file. There must already be a package to do this - find the package or step that is supposed to run before the package you are dealing with and run it to create the file.

    MySQL - How to solve 'Failed to open file error 2'

    When you try to run an SQL file using command line program, you may encounter an error saying .

    The following example tries to run the command and execute the file:

    The code error means that MySQL can’t find the file that you want to execute.

    To solve this error, you need to provide the absolute path to your file location.

    You can find the absolute path of your file by opening the terminal in the directory or folder where your SQL file is located and run the command.

    For example, here’s the absolute path to the directory where I save the file:

    Now I just need to add the path to the file when I issue the source command:

    Please note that you need to use forward slashes () to separate your path sections. Using back slashes () may cause the same error.

    Here’s an example:

    Even though the path is correct, MySQL expects a Unix-style path with forward slashes.

    You should now be able sql error cant open file execute the SQL file, sql error cant open file. There are some other causes for error 2 in MySQL, so let’s take a look at that next.

    Error 2 because of < or > symbols

    Another thing that could cause the error is that you’re adding the greater than or less than symbol in front of the file path as shown below:

    The greater than or less than symbol is commonly used to dump MySQL data to an SQL file or execute a script from the terminal without connecting to MySQL server.

    You need to remove the symbol to execute the command without error.

    Error 2 because of semicolon when using command

    The command is an alias of the command that you can use to raiserror + java an SQL file.

    I don’t know if it’s a MySQL bug, but when you run the command with a semicolon at the end of the file path, you’ll get the error 2 response.

    Take a look at the following example:

    But the same error won’t happen when you use the command:

    To solve this issue, you need to omit the semicolon when you’re using the command.

    And that’s how you fix the MySQL issue.

    Just keep in mind that the error is because MySQL can’t find the file you want to execute.

    You probably need to check the path you passed into the command and see if there’s any typo that causes the error.

    SQL SERVER – FCB::Open failed: Could not open file Path for file number 2. OS error: 5(Access is denied.)

    I assume a number of times when the machine is booted up, I am most likely to hit the Management Studio to work on some script or the other. But sometimes strange things happen and I get all sorts of error, sql error cant open file. There might be tons of reasons why SQL Server is not able to start. This blog is a result of a quick consulting engagement with one of my clients where I faced OS error.

    They contact me to solve a production down situation where SQL was not starting after moving the database files from C Drive to D Drive. They shared the error message as below

    SQL SERVER - FCB::Open failed: Could not open file Path for file number 2. OS error: 5(Access is denied.) <b>Sql error cant open file</b>

    —————————
    Services
    —————————
    Windows could not start the SQL Server (MSSQLSERVER) on Local Computer. For more information, review the System Event Log. If this is a non-Microsoft service, contact the service vendor, and refer to service-specific error code 3417.
    —————————
    OK
    —————————

    This is a very generic error. My first data which I always ask is to give me SQL Server ERRORLOG when SQL is not able to start.

    SQL SERVER – Where is ERRORLOG? Various Ways to Find ERRORLOG Location

    Here is what they shared with me

    2016-06-14 06:28:06.15 spid4s Error: 17204, Severity: 16, State: 1.
    2016-06-14 06:28:06.15 spid4s FCB::Open failed: Could not open file D:\Program Files\Microsoft SQL Server\MSSQL13.MSSQLSERVER\MSSQL\DATA\mastlog.ldf for file number 2. OS error: 5(Access is denied.).
    2016-06-14 06:28:06.15 spid4s Error: 5120, Severity: 16, State: 101.
    2016-06-14 06:28:06.15 spid4s Unable to open the physical file “D:\Program Files\Microsoft SQL Server\MSSQL13.MSSQLSERVER\MSSQL\DATA\mastlog.ldf”. Operating system error 5: “5(Access is denied.)”.
    2016-06-14 06:28:06.15 spid4s SQL Server shutdown has been initiated

    It means that SQL was shutting down because master database was not getting opened, sql error cant open file. You can also get a similar message in Event log which same error number.

    Source: MSSQLSERVER
    Date: 6/13/2015 2:24:39 PM
    Event ID: 17204
    Task Category: Server
    Level: Error
    Keywords: Classic
    User: N/A
    Computer: MySQLServer.MyCorp.local
    Description:
    FCB::Open failed: Could not open file D:\Program Files\Microsoft SQL Server\MSSQL11.MSSQLSERVER\MSSQL\DATA\mastlog.ldf for file number 2. OS error: 5(Access is denied.).

    Our problem is OS error: 5(Access is denied.).

    Fix for Error FCB Open

    This is a Windows related issue where SQL Server does not have appropriate permission to the folder that contains the master database file and hence the error. Now, what should be done? Since we are having access denied, we need to give access. Here are the steps:

    Click on the file (shown in the error message), right click and select properties. Then from within the “security” tab, verify that that the account for the SQL Server service has full control to this file. In my client’s case it was Sql error cant open file Service\MSSQLServer so we have given full control to that.

    SQL SERVER - FCB::Open failed: Could not open file Path for file number 2. OS error: 5(Access is denied.) FCB-02

    Have you encountered a similar situation? What has been your troubleshooting steps? I would love to learn the same from you too.

    Reference: Pinal Sql error cant open file (https://blog.sqlauthority.com)

    Microsoft SQL Server – FCB::Open failed: Could not open file mastlog.ldf for file number 2. OS error: 5(Access is denied.)

    In case you couldn’t start your SQL Server Instance and getting the following error message in your windows application logs, you should verify that the account running that instance have full control to the path where the files of that instance are located.

    FCB::Open failed: Could not open file <PATH MS SQL SERVER>\Microsoft SQL Server\MSSQL11.MSSQLSERVER\MSSQL\DATA\mastlog.ldf for file number 2. OS error: 5(Access is denied.).

    Therefore first check what account is running that instance.


    Now you can add the account to the folder where the instance is located and give it full control permissions.

    In my case it is running under the default virtual account “NT Service\MSSSQLSERVER“, therefore I need to search for this account on the local computer named SQL02.


    Here I need to select the virtual account MSSQLSERVER from the relational database.


    Give the account full control permissions.

    Now you should be able to start the service instance.


    More about virtual accounts and generally windows service accounts you can use to run your SQL Server, you will find in my following post.

    Resolving Access is Denied Error During SQL Server Operations (KBA1167)

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    Applicable Delphix Versions

    Click here to view the versions of the Delphix engine to which this article applies
    Major ReleaseAll Sub Releases
    6.06.0.0.0, 6.0.1.0, 6.0.1.1, 6.0.2.0, 6.0.2.1, 6.0.3.0, 6.0.3.1, 6.0.4.0, 6.0.4.1, 6.0.4.2, 6.0.5.0, 6.0.6.0, 6.0.6.1, 6.0.7.0

    5.3

    5.3.0.0, 5.3.0.1, 5.3.0.2, 5.3.0.3, 5.3.1.0, 5.3.1.1, 5.3.1.2, 5.3.2.0, 5.3.3.0, 5.3.3.1, 5.3.4.0, 5.3.5.0 5.3.6.0, 5.3.7.0, 5.3.7.1, 5.3.8.0, 5.3.8.1, 5.3.9.0

    5.2

    5.2.2.0, 5.2.2.1, 5.2.3.0, 5.2.4.0, 5.2.5.0, 5.2.5.1, 5.2.6.0, 5.2.6.1

    5.1

    5.1.0.0, 5.1.1.0, 5.1.2.0, 5.1.3.0, 5.1.4.0, 5.1.5.0, 5.1.5.1, 5.1.6.0, 5.1.7.0, 5.1.8.0, 5.1.8.1, 5.1.9.0, 5.1.10.0

    5.0

    5.0.1.0, 5.0.1.1, 5.0.2.0, 5.0.2.1, 5.0.2.2, 5.0.2.3, 5.0.3.0, 5.0.3.1, 5.0.4.0, 5.0.4.1 ,5.0.5.0, 5.0.5.1, 5.0.5.2, 5.0.5.3, 5.0.5.4

    Troubleshooting Error: Access is Denied

    In some situations, dSource and virtual database (VDB) operations initiated by the Delphix Engine may fail due to file permission (ACL) errors.

    When this occurs, the following errors may appear in the Failed Actions sidebar:

      The above errors sql error cant open file be displayed after failure of the following operations:

      • Linking a dSource using the Delphix Managed Backups option
      • Taking a manual Snapshot, and selecting the "Copy-Only Backup" option
      • Enabling a Disabled dSource
      • Rewinding or Refreshing a VDB
      • Provisioning a VDB

      These errors indicate a permissions mismatch between an environment's SQL Server Instance Owner and the file permissions (ACLs) on files or directories managed by the Delphix Engine. These errors are raised by the SQL Server process, and will be visible in both the Actions sidebar within the Management interface and the SQL Server Error Log (ERRORLOG).

      Common Causes 

      Possible causes of this error include:

      • NTFS or File Sharing permissions do not meet Delphix requirements
      • The instance owner of one Sql error cant open file Server instance has been changed
      • The Staging Instance has been configured to Use a Local Service Account
      • A Source Instance has been configured to use a Local User Account
      • A Source Instance has been configured to use a Virtual Account
      • A Source Instance is using the Local System or Network Service Account
      • The Staging or VDB snapshot taken contains incorrect file sql error cant open file of these causes is described below.

        NTFS or File Sharing Permissions do not Meet Delphix Requirements 

        The document SQL Server User Requirements describes the permissions required on backup files. Specifically, the following permissions are required to prevent "Access is Denied" error messages:

        • The Staging Instance Owner(the Windows account running the Staging Pawno error 017 undefined symbol proxdetector Server Instance) must be able to access the Windows File Share containing the source database server's backup files
        • The Staging Instance Owner must have NTFS file permissions to open the directories containing the backup file, and the backup file itself
        • The Delphix OS User configured for the Source Environment must be able to access the Windows File Share containing the backup file
        • The Delphix OSUser must have NTFS file permissions to open the directories containing the backup file, and the backup file itself

        The following diagram demonstrates the required access to backup files:

        clipboard_e50320a1366dae6b23eb6e286c59d358c.png

        To test whether the Staging Instance Owner has been granted the necessary permissions, you can run the following query on the Staging SQL Server Instance:

        RESTORE HEADERONLY FROM DISK='\\SOURCEHOSTNAME\SHARENAME\sourcebackupfilename.bak'

        Instance Owner has Changed 

        As part of the provisioning and refresh process, the Delphix Engine sets permissions on the database database files so that they can be read by the SQL Instance Owner.

        You can confirm the instance owner of Source and Target environments from the Delphix Engine's "Manage Environments" screen, in the "Databases" tab.

        accessdenied1.png

        This should match the owner of the instance as defined in SQL Server Configuration Manager or the Services control panel.

        Services.png

        The Delphix Engine will grant privileges to the user displayed in the Management interface - if this information is not current, the real instance owner will not have access to the files during linking or provisioning operations.

        To resolve this issue, you can Refresh the environment using the "Refresh Environment" button, on the lower right of the environment card:

        Windows_Target.png

        Once the environment has been successfully refreshed, you can retry the failed Action.

        VDB Start operations will not attempt to reset file permissions. If a VDB Start operation fails after making the above changes, it will be necessary to Disable and Enable the affected VDB.

        Staging Instance Configured to Use a Local Service Account

        dSource Snapshots using existing backups may fail if the Staging SQL Server Instance is running as a Local Service Account, such as, or .

        As shown in the following diagram, both the Delphix OS User and the SQL Server instance access the Source database's backup file during a Snapshot operation.

        Staging Server_Source Server.png

        If the SQL Server instance eppendorf 5804 error 6 is configured as a local service account, and attempts to access a file over the network, it will typically do so as the Local Computer Account (). If this does not have permissions to access the backup file, an error will be raised:

        Cannot open backup device '\\SOURCEHOSTNAME\SHARENAME\backupfile.bak'. Operating system error 5 (Access is denied.).

        To resolve this issue, we recommend configuring the Staging Instance to use an Active Directory user or service account, as described in our document Overview of Requirements for SQL Server Environments. Microsoft's documentation for modifying the service account is available at SCM Services - Change the Service Startup Account.

        Once the service account has been changed, the following additional steps will be required:

        • From the Environments screen of the Sql error cant open file Engine's Management interface, perform an Environment Refresh of the updated environment
        • Ensure that the new user account has permissions to read the Windows File Share
        • Ensure that the new user account has NTFS permissions to read the backup file and its parent directories

        Alternatively, you may be able to grant read permissions of the backup share and backup file to the Active Directory Computer Account (). Please check to ensure that this is in line sql error cant open file your organizational security policies.

        After making changes, you can run the following SQL query on the Staging SQL Server Instance to test whether permissions have been granted correctly, using the filename from your error message:

        RESTORE HEADERONLY FROM DISK='\\SOURCEHOSTNAME\SHARENAME\sourcebackupfilename.bak'

        Source Instance Configured to Use a Local User Account 

        Delphix Managed Backups and Copy-Only Backups will fail if the Source Instance is running as a Local User Account ().

        Copy-Only Backups performed by the Delphix Engine will need to write backup files to a network share (e.g. ). However, Local User accounts can not authenticate to other devices on the network, sql error cant open file, and attempted backups to SMB (Windows File Sharing) locations will fail:

        To resolve this issue, reconfigure the Source Environment's SQL Server instance to use a supported user account error macro init_work User, Local System, Network Service, or Managed Service Account), and refresh the Source Environment from the Delphix Engine's Management interface. Once this is done, you can retry the linking operation.

        If this is not feasible, sql error cant open file taking a backup to a shared folder instead of performing Delphix Managed Backups.

        Source Instance Configured to Use a Virtual Account 

        Delphix Managed Backups and Copy-Only Backups may fail if the Source Instance is running as a Virtual Account, for example:

        •  ; or

        When attempting a backup to a SMB (Windows File Sharing) share, these accounts attempt to authenticate using a special Active Directory "Computer Account".

        However, the Delphix Engine does not currently map Virtual Service Accounts to the computer name when granting permissions, and attempts to sql network interface 26 error a a Copy-Only Backup will game maker studio rundata error in a permissions error:

        To resolve this issue, reconfigure the Source Environment's SQL Server instance to use a supported user account (Domain User, Local System, Network Service, or Managed Service Account), and refresh the Source Environment from the Delphix Engine's Management interface. Once this is done, you can retry the linking operation.

        If this is not feasible, consider taking a backup to a shared folder instead of performing Delphix Managed Backups.

        A Source Instance is using the Local System or Network Service account 

        Delphix Managed Backups and Copy-Only Backups may sql error cant open file if both:

        • The Source Instance is running as the  or  account; AND
        • The Staging Environment has been added using an IP address or a hostname alias

        When linking a dSource using the "Delphix Managed Backups" option, or taking a snapshot using a Copy-Only Backup, the Delphix Engine creates a SMB (Windows file sharing) share on the Staging server, and initiates a backup from the dSource to this shared folder.

        If the dSource's SQL Server Instance is running as the  or  accounts, the Delphix Engine will detect this, and grant permissions on the Windows share to a special Active Directory "Computer Account".

        However, the backup will still fail if the Staging server has been added to the Delphix Engine using an IP Address or alias, instead of the host's correct Fully Qualified Domain Name (FQDN). You can confirm this in the Host Address field of the Environments Page from the Delphix Engine's Management interface.

        When these conditions are present, the Source Instance will attempt to connect to the Staging Server using a non-privileged Anonymous account and the connection will fail:

        To resolve this issue, either:

        • Modify the Host Address for the Staging Environment to use a Fully Qualified Domain Name; OR
        • Reconfigure the Source Environment's SQL Server Instance to use an Active Directory account, and Refresh the Environment from the Delphix Engine's Management interface

        Alternatively, consider taking a backup to a shared folder instead of performing Delphix Managed Backups.

        Database Snapshots Contain Incorrect File Permissions 

        In Delphix Engine releases 4.3.5.0, 4.3.5.1, 5.0 (fixed in 5.0.4.1), sql error cant open file, and 5.1.0.0 (fixed in 5.1.4.0), issues may occur during SQL Server provisioning operations in some situations, sql error cant open file, such as:

        • The source server is running SQL Server 2005 or 2008, and the target server is sql error cant open file newer version than the source;
        • The target server uses a different instance name to the staging server, and you are attempting to provision a VDB;
        • You are provisioning from a snapshot taken using an earlier version of the Delphix Engine

        This is the result of a timing issue, where the Delphix Engine may take a snapshot of the database files on the Staging/Pre-Provisioning server before the correct file permissions have been synchronized to disk.

        This is a known issue in the product versions listed above. If you encounter this issue, please consider an upgrade to a newer version of the Delphix Engine. Delphix Engine releases 5.1.8.0 and later should resolve all known issues with file permissions.

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