I had the same issue on Ubuntu 14.04 and none of proposed workarounds helped.
The way I was able to solve it was by manually restarting NetworkManager: 1) open terminal 2) type in: sudo stop network-manager 3) type in: sudo NetworkManager And that is it! Afterwards I was able to normally connect to WiFi even after restarting Ubuntu. Hope it helps and good luck! P.S. If restarting didnt help, before that I was also unsuccessfully trying to kill NetworkManager by its PID (it relaunches automatically), maybe it had some impact. I cant really reproduce the bug because it disappeared after restarting NetworkManager. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1104476 Title: Network manager cannot connect to WPA2/PEAP/MSCHAPv2 network without CA_Certificate To manage notifications about this bug go to: https://bugs.launchpad.net/network-manager/+bug/1104476/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
