I have the same issue. Upgraded 12.04 to 14.04 on a Lenovo T530. Killing wpa_supplicant resolves the issue, so I wrote the following script which seems to work:
Put it in /etc/pm/sleep.d/wpa_supplicant_workaround : #!/bin/sh case "$1" in resume|thaw) killall wpa_supplicant ;; esac Not really ideal, but it saves a bit of typing at each resume. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-nettool in Ubuntu. https://bugs.launchpad.net/bugs/1311257 Title: Wifi cannot connect or unstable after suspend 14.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-nettool/+bug/1311257/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs