I tested network-manager 1.2.6-0ubuntu0.16.04.1 from xenial-proposed for 100 cycles, and this issue didn't happen again.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1585863 Title: WiFi malfunction after suspend & resume stress - sudo wpa_cli scan required to fix it. Status in OEM Priority Project: Triaged Status in OEM Priority Project xenial series: Triaged Status in network-manager package in Ubuntu: Confirmed Bug description: HOW TO REPRODUCE: 1. Install fwts by `sudo apt-get install fwts`. 2. Run the suspend & resume stress test. sudo fwts s3 --s3-multiple=30 --s3-min-delay=5 --s3-max-delay=5 --s3-delay-delta=5 RESULT: The WiFi can not connect to any access point and we have to execute `sudo wpa_cli scan` manually to make it work again. WORKAROUND: (http://askubuntu.com/questions/761180/wifi-doesnt-work-after-suspend-after-16-04-upgrade) SYSTEM INFO: Description: Ubuntu Yakkety Yak (development branch) Release: 16.10 Packages: libnm-glib-vpn1:amd64 1.2.2-0ubuntu2 libnm-glib4:amd64 1.2.2-0ubuntu2 libnm-util2:amd64 1.2.2-0ubuntu2 libnm0:amd64 1.2.2-0ubuntu2 network-manager 1.2.2-0ubuntu2 To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1585863/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp