UI to stop VPN is disabled
I frequently get a weird condition where the VPN connect cannot be stopped. See the attached image. I don't know what to do to reproduce this, but it happens frequently.
(from redmine: created on 2013-12-02, closed on 2014-06-02, relates #4569 (closed), relates #4217 (closed), relates #4563 (closed), relates #5140 (closed))