I am facing this issue still on 14.10 . I have all the updates pushed by Ubuntu/Canonical. Earlier when I faced this issue, I removed the modem- manager and it worked like charm. This was like 2 weeks back. Now from last 3-4 days the issue is again. I am going to try one of these now:
1) adding the line: stop on runlevel [6] into the file /etc/init/network-manager.conf - purging network-manager - installing wicd 2) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/869635 Title: long delay at shutdown/reboot - network-manager doesn't close correctly To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/869635/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs