To make this configuration with OpenSSL 3.0 and OpenVPN you need tls-cert-profile insecure
which is not included in OpenvPN 2.5.5 in Ubuntu. The upstream commit is https://github.com/OpenVPN/openvpn/commit/7b1b100557608db8a311d06f7578ceb7c4d33aa6 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1968629 Title: OpenVPN fails to start/connect To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openvpn/+bug/1968629/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs