I actually think I gave a fairly thorough description of the problem and it has nothing to do with ntpd configuration. I even said specifically that I can manually start/stop ntpd and it works - configuration valid and operational.
The problem is /etc/network/if-up.d/ntpdate starting and stopping the daemon in rapid succession when multiple interfaces come up. This causes binding conflicts and often ntpd will wind up down as a result. Reproduction is fairly easy: Just run /etc/network/if-up.d/ntpdate several times in rapid succession and see what happens. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1649729 Title: ntpd startup failures under xenial To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ntp/+bug/1649729/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs