This bug seems to affect a lot of people on Ask Ubuntu too: "Wifi doesn't work after suspend after 16.04 upgrade" http://askubuntu.com/questions/761180/wifi-doesnt-work-after-suspend- after-16-04-upgrade, including me.
I have a Thinkpad T440 where I previously ran Fedora for multiple releases. Never had any issues with the wifi in combination with sleep/resume. The other day I installed Ubuntu 16.04.1 and ran an update. The workaround on Ask Ubuntu that is to run `sudo systemctl restart network-manager.service` works for me, but I feel this shouldn't be an issue in the first place after the first service pack on an LTS release. -- 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/1585863 Title: WiFi malfunction after suspend & resume stress - sudo wpa_cli scan required to fix it. Status in OEM Priority Project: New Status in OEM Priority Project xenial series: New Status in network-manager package in Ubuntu: Confirmed Bug description: 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 Reproduce steps: 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 Expected result: The WiFi still functioned. Actual 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. P.S. Ubuntu 16.04 also has the same issue. To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1585863/+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