Hello, This is an issue with VPN MTU configuration. May I know the root cause why this is causing the issue? After adjusted the MTU , this is fixed.
As the same time putty works without any modification. Why ssh client not negotiating properly with the default MTU It could be a noisy or unreliable connection to the server. Probably that data corruption is happening to the packet when it is sent, which is my assumption https://en.wikipedia.org/wiki/Maximum_transmission_unit https://en.wikipedia.org/wiki/Forward_error_correction >From ubuntu community point of view any suggestions> thanks Jay ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1874257 Title: SSH fails with connection timed out - in VPN and hangs here "expecting SSH2_MSG_KEX_ECDH_REPLY" + Ubuntu 16.04.6 LTS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1874257/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
