Sometimes, other virtual adapters (from VMs or other VPNs) conflict with the TAP driver. Disable unused network interfaces in ncpa.cpl 1.2.1. 4. Fix "Unknown Device" Error
Run the OpenVPN installer again and select "Repair" or "Reinstall." openvpn tap windows
The adapter is stuck in a "connected" state from a previous session, or the driver is corrupted. Solution: Sometimes, other virtual adapters (from VMs or other
If you run multiple VPNs on the same computer (e.g., a work VPN and a personal VPN), they might fight over the single TAP adapter. openvpn tap windows