[Bug 1626283] [NEW] lenovo t420s very slow wifi after dist upgrade 14-16

[Aleksei]

Public bug reported:

it is not more than 2 mbit\s for the moment - before upgrade it works well - about 40-50 mbit\s.
it is not ISP issue other devices works fast at my wifi network

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubuntu-release-upgrader-core 1:16.04.16
ProcVersionSignature: Ubuntu 4.4.0-38.57-generic 4.4.19
Uname: Linux 4.4.0-38-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: Unity
Date: Thu Sep 22 00:29:18 2016
InstallationDate: Installed on 2015-12-17 (279 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
Symptom: dist-upgrade
UpgradeStatus: Upgraded to xenial on 2016-08-17 (35 days ago)
VarLogDistupgradeTermlog:

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug dist-upgrade xenial

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https://bugs.launchpad.net/bugs/1626283

Title:
  lenovo t420s very slow wifi after dist upgrade 14-16

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  it is not more than 2 mbit\s for the moment - before upgrade it works well - about 40-50 mbit\s.
  it is not ISP issue other devices works fast at my wifi network

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-release-upgrader-core 1:16.04.16
  ProcVersionSignature: Ubuntu 4.4.0-38.57-generic 4.4.19
  Uname: Linux 4.4.0-38-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Thu Sep 22 00:29:18 2016
  InstallationDate: Installed on 2015-12-17 (279 days ago)
  InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  Symptom: dist-upgrade
  UpgradeStatus: Upgraded to xenial on 2016-08-17 (35 days ago)
  VarLogDistupgradeTermlog:

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