I'm getting a similar thing. See also https://bugs.launchpad.net/ubuntu/+source/vpnc/+bug/96427 which seems to describe the problem.
In my case, the timeout is more like 30 seconds - just enough time to login. My syslog shows Oct 25 12:51:23 balzac nm-dispatcher.action: Script '/etc/NetworkManager/dispatcher.d/01ifupdown' exited with error status 1. -- 0.5.1r275-1ubuntu1 dead peer, unusable https://bugs.launchpad.net/bugs/281400 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs