I can add to this issue that I use the same key and Remmina client to connect to quite a lot of SSH servers, of different Linux flavors, and it only happens with one of them. I'll attach logs from both a successful connection and the failed one.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/886831 Title: Can't connect to SSH with 4096 bit rsa keypair To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/remmina/+bug/886831/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs