[Bug 1585863] Re: WiFi malfunction after suspend & resume stress - sudo wpa_cli scan required to fix it.

[teo1978]

> Nobody at Canonical suffers from this problem?

LOL I don't think anybody at Canonical actually uses it, otherwise it
couldn't possibly be as broken as it is.

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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.

Status in NetworkManager:
  New
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.

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