This bug is triggered on my system by suspending - after waking up the system, nm doesn't show any connections / available networks even though I'm online.
nm version: $ apt-cache policy network-manager network-manager: Instalovaná verze: 1.2.0-0ubuntu0.16.04.2 Kandidát: 1.2.0-0ubuntu0.16.04.2 Tabulka verzí: *** 1.2.0-0ubuntu0.16.04.2 500 500 http://cz.archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages 100 /var/lib/dpkg/status 1.1.93-0ubuntu4 500 500 http://cz.archive.ubuntu.com/ubuntu xenial/main amd64 Packages related question on askubuntu: http://askubuntu.com/questions/762904 /network-manager-ubuntu-16-04-wifi-connected-no-wifi-networks-listed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1589073 Title: nm-applet not showing existing wifi connection To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager-applet/+bug/1589073/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs