** Description changed:

+ HOW TO REPRODUCE:
+ 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
+ 
+ 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.
+ 
+ WORKAROUND:
+ 
(http://askubuntu.com/questions/761180/wifi-doesnt-work-after-suspend-after-16-04-upgrade)
+ 
+ SYSTEM INFO:
  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.

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https://bugs.launchpad.net/bugs/1585863

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

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