Troubleshooting OpenVPN

If you cannot connect to the OpenVPN and are receiving the following error

TLS Error: TLS key negotiation failed to occur within 60 seconds”

Please see for a resolution

If you can connect but cannot ping any hosts on the internal network and are using Windows Vista or above, please disable IPv6 on the TAP-Win32 interface.

You can do this by:

  1. Click Start
  2. Type “ncpa.cpl”
  3. Right click the TAP-Win32 interface and select properties
  4. Uncheck “Internet Protocol Version 6 (TCP/IPv6)” as per this

Then attempt to re-connect to the VPN.

The requested operation requires elevation. ERROR: Windows route add command failed [adaptive]: returned error code 1 Initialization Sequence Completed

When using Windows Vista or higher, you must run OpenVPN as an administrator. Running it as a non-privileged user will cause the above error and prevent the routes being correctly added to your computer.

! When using Windows – ensure that OpenVPN has been “Run as Administrator”