This is interesting: . 2023.09.01 13:33:50 - Using WinTun network interface "Local Area Connection 3 (TAP-ProtonVPN Windows Adapter V9)" The name of the interface suggests it's the legacy TAP-Windows driver being used as a WinTun interface, which of course will never work. In Preferences > Networking > VPN interface name, type eddie and try connecting again.