Comment 135 for bug 1589401

I too have this bug on a Lenovo W520 with Ubuntu 16.04 kernel 4.4.0-62-generic
The only solution that has worked is restarting the network-manager service, however if I attach an USB WiFi adapter based on rtl8187, the icon becomes normal and I can choose a network for that adapter. The Intel Centrino Advanced-N 6205 remains unusable.
Also the interface name is wlp3s0 instead of the usual wlan0 on other installations I've made.
If I try $ ifdown wlp3s0 results in Unknown interface wlp3s0
As to comment #133 nm-applet still crashes after hardware switching off/on WiFi and resuming from suspend.