OpenVPN errors with “All TAP-Win32 adapters on this system are currently in use.”


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:

  1. Go to control panel -> Network Connections (or Windows Key -> type network -> click Settings, then select Network Connections”
  2. Find the interface with the description “TAP-Windows Adapter”. Right click it and select Disable, then enable it again.
  3. If the interface is already disabled just enable it.
  4. Retry OpenVPN

 

 

 

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