OpenVPN may work for a while then suddenly not be able to connect. If you delve into the logs you may find this error:
All TAP-Win32 adapters on this system are currently in use.
OpenVPN uses a TAP interface which appears in the “Network Connections”. To fix this error try these steps:
- Go to control panel -> Network Connections (or Windows Key -> type network -> click Settings, then select Network Connections”
- Find the interface with the description “TAP-Windows Adapter”. Right click it and select Disable, then enable it again.
- If the interface is already disabled just enable it.
- Retry OpenVPN