zamek42 Hi All, I have an: OpenVPN 2.6_git x86_64-pc-linux-gnu [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [PKCS11] [MH/PKTINFO] [AEAD] [DCO] library versions: OpenSSL 3.0.5 5 Jul 2022, LZO 2.10 in a Debian op sys. When I try to connect to a server, I've got an error: Error: negotiated cipher not allowed - AES-256-CBC not in AES-256-GCM:AES-128-GCM:CHACHA20-POLY1305 2022-08-30 09:43:38 OPTIONS ERROR: failed to import crypto options Unfortunately I don't know anything about the server. I tried to configure as: data-ciphers-fallback AES-128-CBC but the same error. How can I solve this problem? thx, Zamek