Windows client unable to connect

If the Windows client shows command timeout errors or fails to establish a connection, check the background service logs first. Open Settings in the client and review the log output, or locate the Log files directly.

Stale WireGuard tunnel

If the background service logs contain errors like Unable to access interface: No such file or directory, a previous tunnel was not shut down cleanly. This leaves a ghost tunnel entry that blocks new connections.

To fix it:

1. Open the Windows Services manager (services.msc).

2. Look for any services named WireGuard Tunnel.

3. Stop and delete any such services.

4. Retry the connection in Defguard.