A colleague of mine has been affected by this as well, there are new threads popping up in askubuntu.com
http://askubuntu.com/questions/771627/14-04-network-manager-stopped- working and newly affected people are popping up in the old bug: https://bugs.launchpad.net/ubuntu/+source/libnl3/+bug/1511735 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to libnl3 in Ubuntu. https://bugs.launchpad.net/bugs/1581535 Title: libnl upgrade breaks Network Manager Status in libnl3 package in Ubuntu: Confirmed Bug description: I appear to have been hit by a regression problem in the libnl update described here: https://bugs.launchpad.net/ubuntu/+source/libnl3/+bug/1511735 After running a regular software update this morning and rebooting, I've completely lost networking access. Network Manager is down. I'm running Trusty 14.04. I tried this workaround: http://askubuntu.com/questions/727127/last-upgrade-crashes-network- manager-no-internet-connection-no-applet ... and step 1 didn't work. I'll be trying step 2 tonight when I've got more time. I'm filing this as a new bug with a regression-update, as indicated in the above-linked bug report. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnl3/+bug/1581535/+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