Same as comment #52 and #53, while it used to be just once in a while,
since a few weeks, it's now _every_ single time that my laptop resumes.

There are many similar bugs but with probably different causes. So to be
clear here is the symptoms I see much more recently since a few weeks
(on 16.04): after resume, only a couple of wifi networks will be listed
at most, and never the one I use.

This workaround does work (to get nm-applet list all the networks again):
sudo service network-manager restart

These things do _not_ work:
 * restarting nm-applet
 * disabling/enabling the wifi from the hardware key
 * trying to unblock the wifi in software (via rfkill), it's not even marked as 
disabled anyway.

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  WiFi malfunction after suspend & resume stress - sudo wpa_cli scan
  required to fix it.

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