Error code 629 vpn

error code 629 vpn

Which has failed the Error code returned on failure is 720? Windows; What Really IsWhat Causes VPN Error 720? What is the error code 629? i'm trying to setup an L2TP config up, but cant seem to get the initial connection to work. I have successfully setup an SSTP c. Fix broadband connection error 629. Error de VPN 631, 633, 650 and more to fix. · Method 1: fix using advanced system repair tool · Method 2: software or driver.

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Windows 7 VPN to OS X Server error 629, Tried a lot of options

Error code 629 vpn - would you

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Error 629 usually directs that the connection is closed by the remote computer. That is the port has been closed or disconnected by the remote machine. The error 629 might be caused by an authentication failure due to entering invalid login information.

Full Answer

Why do I get a VPN connection problem 629?

Instead, you get the error below: VPN Connection Problem: Error: 629 The connection closed by the remote computer Make sure that you have installed WFBS Critical Patch Build 1396.

How do I fix error 629?

Error 629 can be caused by several issues. Below are some causes and possible solutions. Double-click the Rainier Connect icon you use to connect to the internet. You will see your user ID in the User Name box. Double check the spellingof your user ID. Make sure that you have a capital P at the end of your user ID.

What are the error codes for dial-up connections or VPN connections?

The following list contains the error codes for dial-up connections or VPN connections: An operation is pending. The port handle is invalid. The port is already open. Caller's buffer is too small. Wrong information specified. Cannot set port information.

What is the error number for Extensible Authentication Protocol?

797. A connection to the remote computer could not be established because the modem was not found or was busy. For further assistance, click More Info or search Help and Support Center for this error number. 798. A certificate could not be found that can be used with this Extensible Authentication Protocol. 799

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How do I fix Error 629?

Possible solution for error 629: Restart your computer and wait until all applications have completely loaded before trying to reconnect. Recreate the Dial Up Connection. If your problem has still not been resolved uninstall and reinstall your Broadband modem.

How do I fix VPN error 619?

How can I fix Windows VPN failed with error 619?Re-install VPN application. ... Prevent VPN connection clashes on your computer. ... Disable firewall or anti-virus programs. ... Check VPN with another PC. ... Configure PPTP.

What is error 800 in VPN connection?

Error 800 occurs when you are trying to establish a new connection to a VPN server. It indicates that messages being sent by the VPN client (you) are failing to reach the server. Many possible reasons for these connection failures exist including: The client device lost the connection to its local network.

What is Error 720 in dial up connection?

Error 720: Dial-Up networking could not negotiate a compatible set of network protocols you specified in Server Type settings. Check your network configuration in network control panel and try the connection again.

What ports does Pptp use?

Point-to-Point Tunneling Protocol (PPTP) uses TCP port 1723 and IP protocol 47 Generic Routing Encapsulation (GRE). PPTP provides a low-cost, private connection to a corporate network through the Internet. PPTP works well for people who work from home or travel and need to access their corporate networks.

How do I fix Error 691 on broadband?

"Error 691" Error Message When You Try to Connect to Your ISPVerify Your User Name and Password. ... Verify the Phone Number. ... Allow Unsecured Password. ... Check For Phone Line Noise. ... Lower the Connection Speed. ... Disable Hardware Flow Control. ... Disable Modem Error Control. ... Disable Modem Compression.More items...

What is most likely to produce an error code 800?

The error message “Unable to establish connection” with error code 800 is a common VPN error. It occurs when the VPN client is unable to reach the server. This error is often caused by a problem with the network connection, for example when the network is down or overloaded.

Can't connect to VPN connection the remote connection was not made?

If you keep getting The remote connection was not made an error message, the problem might be your antivirus or firewall. Third-party antivirus tools can sometimes interfere with Windows and cause this and other errors to occur. To fix the problem, you need to disable certain antivirus features and check if that helps.

Which has failed the error code returned on failure is 789?

VPN error 789 appears when a Windows system isn't configured properly while using the L2TP protocol. This error can be fixed with a quick network adapter reset from Device Manager.

What is Error 651 in Internet connection?

Error 651 indicates that an attempt at a connection to the internet was unsuccessful, or an existing connection has been terminated.

How do I fix VPN error 720?

Fix VPN Error 720: Error connecting to a VPN ConnectionAssign valid VPN server IP address.Allow WAN Miniport adapters to re-create themselves.Reset TCP IP Protocol.

Can not connect to VPN Windows 10?

Reinstall VPN Software. If you are using a third-party VPN software, you can check for updates to update the VPN software to the latest version or reinstall it, since VPN software is frequently updated. After you updated the VPN software, you can check if the VPN not connecting issue is fixed on Windows 10.

Question

I have a SERVER1 as domain "domain.com" which it has the certification role as a CA also AD + DNS, I have another SERVER2 with NPS and RAS enabled, this scenario is to try NAP trhough VPN.

Answers

Have you followed the instructions in the VPN enforcement step by step guide? The error sounds like it is related to certificates. The only certificate you need is a computer certificate installed on the NPS server. However, the client must trust this cert by having the correct Root certificate in the Trusted Root Certificates container.

How to connect Rainier to the internet?

click the Rainier Connect icon you use to connect to the internet. Click the Properties button. In the General tab, you should see towards the top Connect Using with a box below showing your computer's modem. Click the Configure button next to your modem.

Is my modem compatible with my computer?

Your modem may not be fully compatible with our system . Customers with WIN modems (software based modems) may experience more problems than customers with hardware based modems. To check if you have a WIN modem, do the following

What is VPN error?

First of all, you should get to know what VPN is. Actually, its full name is virtual private network, which is able to extend a private network for you across the public network. With the help of VPN, users can protect their data well and exchange data with other devices directly via the shared or public networks ...

What does it mean when VPN is not connecting?

What does this mean? It generally refers to the situation in which your VPN connection is corrupted suddenly; some even reported that their VPN is connecting forever. Another type of VPN problems is Windows 10 VPN not working.

How to change VPN settings?

Click on the Change settings button. Look for your VPN software and make sure both the Public and Private networks you need are checked. (If you can’t find your software here, you can click on the Allow another app button in the lower right corner to find it manually.) Click on the OK button to confirm changes.

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  • Troubleshooting Client VPN

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    This document is a guide for administrators and users while troubleshooting client VPN issues. Use this document to identify and resolve client VPN issues faster. This article also outlines troubleshooting methods for client VPN connectivity issues, primarily for Windows-based clients, including a list of common errors as well as some common issues and solutions for accessing resources over client VPN. For configuring client VPN on OS devices, please refer to our Client VPN OS Configuration documentation.

    Screen Shot 2020-03-25 at 8.56.12 PM.png

    No Users Can Connect:

    Is the MX online?

    Ensure your MX is online and accessible over the internet. You can verify internet connectivity using the Ping appliance button on the Tools tab of the appliance status page. 
    (Security & SD-WAN > Appliance status > Tools > Ping appliance)

    Incorrect MX IP address is specified

    Consider enabling Dynamic DNS and using the hostname (e.g. ".com") rather than the MX IP address for connecting to the VPN. You can find your MX hostname on the Security & SD-WAN >Appliance status page.

    If you are using an IP address to connect, verify that you’re attempting to reach the MX at the correct IP address. You can verify the MX IP address by going to the Security & SD-WAN > Appliance status page in the dashboard.

    If you have two uplink connections, when the uplink fails over from primary to secondary, the MX IP address may change, which would cause the MX VPN connection to no longer work if configured to use the primary MX IP address.

    Upstream NAT/firewall issue on the MX side

    If your MX is behind a NAT device (e.g. an upstream router or ISP modem), the MX uplink IP will most likely have a private IP from 172.16.X.X or 192.168.X.X or 10.X.X.X subnet range. Ensure UDP traffic on ports 500 and 4500 is being forwarded to the private uplink IP address of the MX. Also, verify if there are any firewalls blocking UDP traffic on ports 500 or 4500.

    Take a packet capture on the WAN interface of the MX and confirm that traffic from the public IP of the VPN client and UDP port 500 and 4500 traffic is reaching the MX.

    Authentication issue

    If you are receiving authentication errors, reverify the username, password, and shared secret. Try a different authentication method other than the one you are using, like Meraki Cloud Authentication, RADIUS, or Active Directory. 

    Shared secret mismatch

    If you are not sure what the shared secret is, retrieve it using Show secret on the dashboard Client VPN page. VPNs require the shared secret to match on the VPN server and client before tunnels can be established. Try changing your shared secret to eliminate the shared secret issue.

    Encryption method

    Client VPN uses the L2TP/IP protocol, with 3DES and SHA1 respectively as the encryption and hashing algorithms. As a best practice, the shared secret should not contain any special characters at the beginning or end.  

    Some Users Can Connect:  

    Windows

    VPN adaptor configurations/Windows update

    A frequently seen issue is the VPN adaptor settings changing after a Windows update. If your VPN was working and has stopped connecting, check for bidirectional traffic between the VPN client and MX by taking a packet capture. If you see bidirectional traffic and are still unable to connect, review the VPN configuration settings. Please use this KB to verify or reconfigure your Windows VPN settings. Meraki is working on a long-term solution for this issue. You can also explore the Systems Manager Sentry option, which refreshes your VPN settings periodically to ensure your adaptor settings align with configurations on the VPN server.

    Note: If your Windows device is failing to connect to the VPN, it is recommended that you verify the VPN configuration on your device to ensure it matches the Client VPN OS Configuration requirements.

    Common Windows errors 789, 691, 809, 720, etc.

    If a client VPN connection is failing to establish from a Windows device, but no error message appears on the screen, the Event Viewer can be used to find an error code associated with the failed connection attempt:

    Step 1. Press the Windows key and type "Event Viewer," then click on Event Viewer in the search results.

    Step 2. In Event Viewer, navigate to Windows Logs > Application.

    Step 3. A client VPN connection failure should show up as an Error event type. Clicking on the event will show the associated error code.
    Microsoft's knowledge base article lists error codes and their meanings however, some of the more frequently seen error codes are listed here:

    Windows Error 789

    Windows Error 789-1.png

    Example event log entries:

    Jul 2 13:53:20 VPN msg: invalid DH group 19. Jul 2 13:53:20 VPN msg: invalid DH group 20.

    This issue may also result in no event log messages if the client's traffic doesn't successfully reach the MX's WAN interface.

    Possible causes and solutions:

    • Incorrect secret key (preshared key in Windows)

    Solution: Ensure that the shared secret is configured correctly on the client machine. It must match between the MX and the client. More information about setting the shared secret can be found in the links at the top of the page.

    • Firewall blocking VPN traffic to MX

    Solution: Ensure UDP ports 500 (IKE) and 4500 (IPsec NAT-T) are being forwarded to the MX and not blocked. If traffic cannot reach the MX on these ports, the connection will time out and fail.

    • IKE and AuthIP IPsec keying modules disabled (Windows only)

    Solution: This occurs most often when third-party VPN software has been installed and disables the IKEEXT service. This can be reenabled by navigating in Windows to Control Panel > Administrative Tools > Services. Find the service named "IKE and AuthIP IPsec Keying Modules" and open it. Change the Startup type to "Automatic." If this automatically reverts to "Disabled" or fails to start, it may be necessary to remove the third-party VPN software.

    Windows Error 789-2.png

    Windows Error 691

    Windows Error 691.JPG

    Example event log entries:

    Jul 2 14:00:40 VPN msg: not matched Jul 2 14:00:40 VPN msg: ISAKMP-SA established 82.35.46.78[4500]-174.45.35.220[4500] spi:b74e92b3b5360c16:ce602504804696a9

    Possible causes and solutions:

    Solution: Confirm user credentials are correct. When using Meraki authentication, usernames should be in email format (ex. [email protected]). When using AD or RADIUS authentication, be sure to enter the username in a format that will be recognized by the server, including the domain if needed (ex. DOMAIN\user).

    ​​​​Solution: If using Meraki authentication, ensure that the user has been authorized to connect to the VPN.

    • No certificate on AD server

    Solution: If using Active Directory authentication with Client VPN, make sure the AD server has a valid certificate for TLS.

    • Incorrect DNS name resolution from the MX's upstream DNS server

    ​​​Solution: If the MX is configured with an ISP DNS server, change this to a non-ISP public DNS server such as Google 8.8.8.8.

    • Alternatively, this message can be caused when a mismatch of preshared secrets between a RADIUS server and MX results in bad encryption of the password. Test this by changing the preshared secret in dashboard and for the RADIUS client on the server to something simple, such as "Meraki." If the error disappears, verify the secret used is correct on both devices and simplify the password if needed. 
    Windows Error 809

    If this error appears, the Event Log won't have any relevant logs, as the traffic doesn't reach the MX's WAN interface.

    Possible causes and solutions:

    • Client behind NAT devices

    ​​​​​Solution: Modern Windows devices do not support L2TP/IPsec connections when the Windows computer or VPN server are located behind a NAT. If the Windows VPN client fails with Error 809 when trying to establish a VPN connection to an MX located behind a NAT, add the "AssumeUDPEncapsulationContextOnSendRule" DWORD value to the Windows registry. This DWORD value allows Windows to establish security associations when both the VPN server and the Windows-based VPN client computer are behind NAT devices.

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\IPSec

    RegValue: AssumeUDPEncapsulationContextOnSendRule

    Type: DWORD

    Value data: 2
    Base: Decimal

    • For Windows Vista, 7, 8, 10, and 2008 server:

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\PolicyAgent 

    RegValue: AssumeUDPEncapsulationContextOnSendRule

    Type: DWORD

    Value data: 2
    Base: Decimal

    Note: that after creating this key you will need to reboot the machine. For more information, reference this Microsoft Support knowledge base article.

    Note: Some third-party network programs can also cause Windows Error 809 to occur. SmartByte is one such program known to cause this issue. Disabling the program should resolve the issue and allow the VPN to connect.

    Windows Error 720

    Windows Error 720 1.JPG

    If, when attempting to connect, the above message comes up, check the Windows Event Viewer for Error Code 720.

    windows error 720.PNG

    This most likely means that the client VPN subnet IP pool is exhausted. Check the Meraki dashboard Event Log for the event type VPN client address pool empty:

    client vpn address pool empty.PNG

    To address this, you will need a larger subnet size for client VPN users. For example, use 192.168.0.0/23 instead of 192.168.0.0/24. Note that one IP in the subnet is consumed for internal use by the MX security appliance, so a /24 subnet which provides 254 usable IP addresses will allow for 253 VPN clients to connect, assuming the MX model supports that many concurrent users. See the MX Sizing Principles guide for exact numbers.

    SmartByte application

    Another common issue with VPN connections from Windows devices is the SmartByte application. If it is installed, please try uninstalling it and reinitiating your VPN connection.

    macOS

    Not many client VPN connection issues are seen with macOS devices. If you do see this, try to connect on a different Mac device and OS version.

    Mobile and IPv6

    Mobile users usually have little or no trouble connecting. If you are having issues, double-check your configuration. Try resetting your network settings and reconfigure. See the Client VPN OS Configuration KB. If you are trying to connect over cellular, it could be an issue with your cellular provider. Try connecting via Wi-Fi.

    Sometimes the event log will log the message, "msg: unsupported ID type 5." If the identification field value is 5 in the identification payload, this means the payload is carrying the ID type "ID_IPV6_ADDR." Meraki does not currently support ID type 5, so an error will appear for these ISAKMP messages. This message will appear for devices that do not have an IPv4 address assigned to them directly, and, as such, are reliant upon an IPv6 transition mechanism like NAT64 to reach the internet. Such devices will not be able to connect to our client VPN solution at this time.

    Other possible issues and solutions

    Firewall issue on client side: If UDP traffic on port 500 and 4500 is not reaching the MX, the chances are high that UDP traffic on those ports is being blocked by another firewall between the end client and the MX. You may have to check the firewall rules or access control lists between the client and MX. Try connecting from a client device using a different ISP.

    Device issue: You could be running into an issue specific to the device. Try connecting with a different device to verify if it is a device-specific issue. Try resetting your network settings or reset the device if possible.

    User account issue: If your account is not authorized to connect to VPN or your credentials are wrong, try resetting your password or connecting with a working set of credentials to further isolate the issue. 

    The MX is Not Receiving the Client VPN Connection Attempt

    Look at the event log page, using the filter Event type include: All Non-Meraki/Client VPN. Check whether the client's request is listed. If there is no connection attempt going through to the MX, it is possible that the internet connection that the end user is on may have blocked VPN. If this is the case, you may need to check the access control and firewall settings upstream of the client.

    If the event log is not clear, take a packet capture on the MX using the WAN interface or client VPN interface. Check whether there is any traffic seen when the client attempts to connect.

    Can Connect to VPN but Cannot Access Resources

    If you are connected to the VPN but cannot access resources, a common cause is due to subnet overlap between the local client network and the network the resource is in. If the local network you are on has the same IP address as the network you are trying to get to, your request will never make it through the tunnel. To validate this, test with the full tunneling option to see if it makes a difference. 

    Additionally, end users may report that they are unable to map network shares over the client VPN tunnel. This could be potentially caused by a layer 7 firewall rule configured to block file sharing. Check the layer 7 firewall rules under Security appliance > Configure > Firewall > Layer 7.  

    Layer 7.JPG

    Also, check any group policies that are applied to the target resource to ensure file sharing is not blocked in the group policy.

    Accessing resources over the tunnel via IP vs. DNS

    If you are unable to access resources via domain name (DNS), try accessing via IP. If you succeed in accessing via IP, it could be a DNS issue. Try to resolve the DNS host name and confirm if the public IP of the MX is being returned. If you are unable to resolve the DNS host name, check the local DNS settings.

    Note: It is possible to apply group policies to clients connected via client VPN. If a resource isn't pingable or a particular application isn't working, it would be a good idea to check the client details page to see if any group policies have been applied. For more help on assigning or removing group policies applied to a client, refer to the Creating and Applying Group Policies document.

    Note: that Microsoft's Windows firewall typically blocks communication from unknown private subnets by default.

    Resolving NetBIOS names over client VPN

    Windows hosts utilize NetBIOS-based name resolution to locate Windows file and print shares located on other Windows hosts. A NetBIOS name syntax appears as "MYCOMPUTER" and is normally seen in UNC paths such as \\MYCOMPUTER\myfileshare\.

    NetBIOS name resolution is a layer 2 broadcast-based name discovery protocol. Layer 2 broadcasts do not traverse layer 3 boundaries such as the client VPN interface on an MX.

    WINS is a service that provides centralized name resolution of NetBIOS hostnames. NetBIOS clients register their hostnames on the WINS server and other NetBIOS clients query the WINS server to resolve NetBIOS names.

    To allow hosts that utilize NetBIOS names to find network resources over client VPN, specify the IP address of a WINS server in the client VPN configuration. This is done using the WINS setting on the Security & SD-WAN > Configure > Client VPN page.

    In the screenshot below, the specified WINS server is 192.168.1.100:

    Netbios.JPG

    Connection is slow

    If you are connected but your connection is slow, first identify if your connection is slow to everything over the tunnel or just for specific internal resources. If your connection is slow to an application but fast to other resources via the tunnel, then it’s most likely not a VPN issue. 

    You can also run speed tests if traffic is fully tunneled. VPN speeds depend on a lot of factors, including bandwidth on the MX and client side, number of clients connected to MX, number of VPN tunnels on the MX, etc.

    Connections to Clients with Dual NICs

    Sometimes a user's endpoint utilizing the client VPN connection may have connection issues to LAN endpoints that have dual NICs. Often, LAN endpoints have both a WAN and a LAN NIC. If these devices are unpingable from an endpoint connected via client VPN, check the routes on the LAN endpoints. In Windows, open the command prompt and type the command "route print". In macOS, open up the terminal and type the command "netstat -nr". Check that there are gateways set for the LAN routes and not just the WAN.

    Max Sessions per User Account

    For security purposes, we limit each user's account to five (5) simultaneous VPN connections to an MX. If you need to change this number, please contact Cisco Meraki Support.

    Troubleshooting Client VPN with Packet Captures

    Client VPN connection issues can be effectively troubleshot by using packet captures. In this section, best practices and expected behavior in terms of what can be seen in a packet capture will be discussed, and common troubleshooting steps are explained.

    NOTE: The following section assumes the use of Main Mode for IKEv1 rather than Aggressive Mode. The use of Aggressive Mode is discouraged on MX 14 and earlier firmware because of known security flaws in the protocol, and is no longer supported for Client VPN as of MX 15 firmware and onward.

    Negotiation Process

    Client VPN Negotiation Process.png

    For any client VPN connection, expect to follow the above process. If the process breaks down at any point, there are some specific things to look for at each step. To start, take a WAN packet capture (on the primary WAN) and follow the guide below.

    Understanding the WAN Packet Capture

    Client VPN WAN Pcap.png

    Filter the WAN pcap for the client’s public IP and ISAKMP/ESP, if necessary. Look for the ISAKMP “Next payload” field, which identifies the negotiation step. Start at the first “Security Association” from the client.

    Troubleshooting Tips

    If no ISAMKP traffic from the client is seen:

    • Verify client is connecting to the primary MX WAN IP (VIP for warm spare)
    • Verify inbound UDP 500 traffic is not being blocked/dropped upstream
    • If the MX is behind a NAT, port forwarding may need to be configured on the upstream device for UDP ports 500 and 4500
    • Some OS-specific behaviors may prevent the client machine from generating any traffic. Try to rule this out by testing another device type (e.g. a different OS or smart phone)

    ISAKMP Phase 1

    1. Security Association

    ISAKMP Phase 1 Security Association.png

    The initiator sends a Security Association and the responder sends a Security Association response.

    2. Key Exchange

    ISAKMP Phase 1 Key Exchange.png

    The initiator sends a Key Exchange and the responder sends a Key Exchange response.

    Troubleshooting Tips

    • Phase 1 uses UDP 500, phase 2 uses UDP 500 or UDP 4500 (NAT-T)

    • If the MX doesn’t respond to the client, verify:

      • The destination IP and MAC addresses (or VIP for warm spare) are correct

      • Port forwarding isn’t configured on the MX for port 500

      • Client isn’t trying to connect from behind the same MX

      • Client public IP doesn’t match any non-Meraki VPN peer IPs or another currently connected VPN client

      • Any extra configuration options manually applied to the MX that would override default client VPN settings

    • If both sides are continually sending Security Association, this may indicate port 500 traffic isn’t being received at the client

    • If one side is continually sending Key Exchange, this may indicate one of the following problems:

      • Incorrect preshared key

      • Port 4500 traffic to initiate phase 2 is being dropped/filtered (not reaching the client)

    ISAKMP Phase 2

    3. Identification

    ISAKMP Phase 2 Hash.png

    The initiator sends an Identification, and the responder sends an Identification response.

    4. Hash

    ISAKMP Phase 2 Identification.png

    The initiator sends a Hash, and the responder sends a Hash response.

    Troubleshooting Tips

    • Phase 2 uses UDP 4500 (NAT-T) or sometimes UDP 500
    • If both sides are continually sending phase 2 packets, this may indicate one of the following problems:

      • Incorrect encryption/authentication settings

      • Incorrect subnet definition (site-to-site only)

    • The client may need to verify their VPN settings. For additional information on specific OS configuration, please follow this article on Client VPN OS Configuration.

    ESP

    If bidirectional ESP traffic is seen, the tunnel is up.

    • User authentication happens at this step

    • The WAN packet capture will no longer be helpful, since everything is encrypted past this point

    • Verify if the authentication is successful between the MX and the authentication server

    Troubleshooting Tips

    • For Meraki Cloud authentication, verify:

      • The MX WAN port can resolve meraki.com via DNS, and all required cloud connections are allowed on upstream equipment; for additional explanation of what Meraki requires for cloud communication, please reference the documentation on upstream rules for cloud connectivity

      • The account is "Authorized for client VPN" in dashboard and the password is correct
    • For RADIUS authentication, verify:
      • RADIUS authentication packets sent between MX and server must result in ACCESS-ACCEPT for successful connection
      • RADIUS server event log, which is explained in the RADIUS Issue Resolution Guide
    • For Active Directory authentication, verify:
      • Active Directory packets sent between MX and server show a successful TLS connection
      • Active Directory server event log
    • For all authentication types:
      • If no authentication logs or packets are seen, the client may not be sending credentials

        • The client may need to verify their VPN settings

        • If the problem exists for only one client, troubleshooting may be required at the client machine (e.g. reboot, check for conflicting software)

      • If authentication is successful but client still fails to connect, ensure the IP pool for the client VPN subnet is not exhausted

    Verifying a Successful Connection

    There are three primary ways to determine if the client VPN connection is successfully connected to an MX:

    • Check the device for connection status using common network utilities (this will vary depending on the operating system being used). The event log contains entries each time a client connects or disconnects from client VPN. These logs can be viewed from Monitor > Event log. Deselect all event categories except VPN, then click on the Search button. Client VPN logs will have one of two event types: VPN client connected or VPN client disconnected. Here is an example set of log messages that show a client connecting and then disconnecting from client VPN:
    Jun 27 12:24:53 05:00:08:ab:cd:ef VPN client disconnected remote_ip: 174.X.X.X, user_id: administrator, local_ip: 192.168.100.239 Jun 27 12:24:38 05:00:08:ab:cd:ef VPN client connected remote_ip: 174.X.X.X, user_id: administrator, local_ip: 192.168.100.239
    • The client list can also be used to see if a client is currently connected to client VPN. Browse to Monitor > Clients in the dashboard. Add an additional column by clicking on the "+" button and select MAC address. Clients can then be filtered by "N/A (client VPN)" as the MAC address.  

    Common inquiries

    EULA Privacy Policy Select-Object -ExpandProperty IPsecCustom Policy" command. In case you see the IKEv2 security policy isn't the same on the server and the client, make sure to follow this tutorial to update your settings.

    54. VPN Error Code 20199

    Error Message:"Unable to establish the VPN connection. The VPN server may be unreachable (-20199)."

    Explanation & Solution: We have an error usually related to the Fortinet client here. For some reason, third-party software can block Fortinet from working properly, which means that certain settings need to be tweaked. More precisely, your need to update your WAN Miniport driver and settings. So, we recommend using VPNHosting's handy WAN Miniport Repair Tool. Click on the provided link to download the required software to your computer.

    55. VPN Error Code 20227

    Error Message:"The certificate's CN name does not match the passed value."

    Explanation & Solution: As you can see, there's a problem with your certificate's CN name (common name). You need to make sure that you're using the correct hostname to which your IP is resolving. If you're connecting to an X.X.X.X IP that resolves to (for example) 'myvpn.mydomain.com,' you need to make sure that your certificate contains that CN name.

    56. VPN Error Code 0x800704C9

    Error Message: "No SSTP ports available on the server."

    Explanation & Solution: As you can imagine, this error can happen if you’re using the SSTP protocol. As such, it can be resolved by making adjustments via the Remote Access Server, so here’s what you need to do.

    • Initialize the RRAS (Routing and Remote Access) within your Windows Server OS;
    • Expand the server you want to connect to;
    • Right-click on ‘Ports’ and then select ‘Properties’;
    • Click on ‘WAN Miniport (SSTP)' from the ‘Name List’ and click on ‘Configure’;
    • Make sure that you have plenty of ports in the ‘Maximum Ports’ list, with the default value being set to ‘128’;
    • Click ‘OK’ to apply the new rule.

    57. VPN Error Code 0x80072746

    Error Message: "Connection closed by remote host."

    Explanation & Solution: Since this issue is related to HTTPS authentication certificates, there’s nothing you can do to fix it. Instead, you need to contact your VPN provider and report the problem.

    58. VPN Error Code - Hamachi VPN Tunnel

    Error Message:If you see the 'VPN Error Status' error when using the Hamachi client, something is blocking the client from tunneling properly. 

    Explanation & Solution: First, we recommend disabling and enabling Hamachi's virtual adapter. Go to Control Panel > Network & Sharing Center > Change Adapter Settings. Then, right-click on the Hamachi network adapter and select 'Disable.' Now, do the same, just make sure to click on 'Enable.'

    You can also try restarting the Hamachi Tunneling Engine service. Press 'Window Key + R' on your keyboard, and type in 'services.msc.' Press enter, and then search for 'Hamachi Tunneling Service.' Right-click on it and select 'Disable.' Then, repeat the procedure, but make sure to click on 'Enable.'

    Among other solutions, we recommend removing any previously installed TAP drivers, removing any firewall tools (including antivirus software), removing Oracle Virtual Box, and reinstalling your Hamachi client.

    Further Reading

    TechNadu's editorial team has been very busy producing all kinds of VPN reviews, guides, and other types of helpful content. With this said, check out the following resources.

    Finally, in case of any questions, don’t hesitate to post a comment below. And in case you need additional help, we recommend checking our VPN troubleshooting guide.