I am having this problem now as well. A while back I used a script to restart network manager service after resume and this fixed all issues. Yesterday I tried to see if this issue has been fixed or not. After disabling the service with systemd I tested it with a two hour or so suspend. After waking up the computer was still connected to the AP and I was able to browse the web but the network manager icon was the Ethernet one and it didn't list any APs nearby to connect to. I disconnected manually and was unable to connect to an AP since none were listed. I re-enabled the script with systemd and all is working again. So from my end it seems the connection is still going but network manager UI is not working like it should.
-- 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: 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/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
