There isn't a lot of info on the bug to help, but it already seems to be a config issue. For those you are better with a community page like askubuntu.com as this is about fixing bugs in the package and not about guiding to a valid configuration.
A search showed https://askubuntu.com/questions/60350/putty-works-but-ssh-from-terminal-fails-after-ssh2-msg-kexinit https://askubuntu.com/questions/344863/ssh-new-connection-begins-to-hang-not-reject-or-terminate-after-a-day-or-so-on https://stackoverflow.com/questions/2419412/ssh-connection-stop-at-debug1-ssh2-msg-kexinit-sent Maybe one of these can already help you? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1849878 Title: Debu1: SSH2_MSG_KEXINIT sent To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1849878/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
