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Sophos Firewall: SSL VPN - How to troubleshoot when an SSL VPN user can't access Firewall LAN resources

Disclaimer: This information is provided as-is for the benefit of the Community. Please contact Sophos Professional Services if you require assistance with your specific environment.

This guide outlines troubleshooting suggestions when a SSL VPN user is unable to access LAN resources behind the XG, but the SSL VPN connects successfully.

Note: First make sure to follow this KB to ensure you have the correct firewall rules configured.


Troubleshooting Suggestions - Windows O/S

Situation: If User A can connect but User B is unable to - even though they belong to the same SSL VPN user group, the issue might be related to User B's local machine.

  1. Please open User B's SSL VPN client and confirm a successful connection.
  2. Once connected, right-click on the profile and select View Log
  3. Search for a similar log entry:
    • ROUTE: route addition failed using CreateIpForwardEntry: Access is denied.   [status=5 if_index=3]
  4. If you see a similar entry - the issue may be that the computer is not allowing the current user to print the route to the local machine.

To fix this issue:

  1. Open Windows Explorer
  2. Search for SSL VPN
  3. Right-click and open file location
  4. Click compatibility
  5. Check Run the program as an adminstrator
  6. Select Apply and OK

Note: This is a security measure imposed by Microsoft and not by OpenVPN.



Edited TAGs for Test
[edited by: emmosophos at 9:51 PM (GMT -7) on 13 Sep 2024]