Updated lubuntu from 14.04 to 14.10 today. Had the same issue. #1 worked for me. Had installed sendmail in the past. I tracked down that the /etc/network/if-*.d/sendmail scripts were the culprit. Just moved them to sendmail.bak (in if-up, if-down and if-post-down) and now everything works fine. Thank you!
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1385709 Title: network-manager service doesn't start at boot time Status in “network-manager” package in Ubuntu: Confirmed Bug description: I just completed the upgrade from Kubuntu 14.04 to 14.10. Haven't had any network trouble before the upgrade. After the upgrade, the network-manager service does not start when the computer boots up - the Kubuntu splash screen says 'waiting for network configuration', then 'waiting another 60 seconds for network configuration' (or something like that), then finally boots up without a network connection. Also the Network Management tray icon tooltip says that the network-manager service is not running. However if I then manually open the terminal and run 'sudo service network-manager start', then it starts ok and the network connects within a few seconds and everything works ok until the next reboot. I'm on a desktop PC with a wired LAN connection and no wifi adapter. network-manager version is 0.9.8.8-0ubuntu28. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1385709/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp