I ran into the same issue connecting from 13.10 to 12.04. In order to fix I had to uncomment both the Ciphers line in virbal's fix and the MACs line.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/174168 Title: expecting SSH2_MSG_KEX_DH_GEX_GROUP To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/174168/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
