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[Bug 1379524] Re: Weak wifi signal and bluetooth missing firmware


This is $ iw event -t -f output when connectivity issues start

I disabled IPv6 and also 11n but to no avail.

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  Weak wifi signal and bluetooth missing firmware

Status in “bcmwl” package in Ubuntu:

Bug description:
  On a fresh install of Ubuntu 14.04 on my new HP Pavilion 15-020ng with
  Broadcom BCM43142 hybrid wifi/bluetooth chipset the official driver
  from Broadcom does not work correctly. On 2.4 GHz the wifi signal is
  so low that the connection is interrupted on a regular basis (network
  manager shows 26 Mb/s), other devices (notebook, tablet) do have a
  normal signal at the same position and even this laptop has a good
  signal with Windows 7 (Dual-Boot).

  In addition, Bluetooth does not work because the driver reports
  missing firmware but there does not seem to be official firmware
  available anywhere.

  The exact device name:
  08:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)

  The 5 Ghz frequency seems to be not supported by the driver according
  to the README file and does not work at all. My router is set to use
  WPA2-PSK with AES, which is the only possible option besides WPA or

  I am using the official wl driver that was installed by default, also
  tried reinstalling via "sudo apt-get install bcmwl-kernel-source
  --reinstall" without improvement and "sudo iwconfig wlan0 power off".
  Also blacklisted b43, brcmsmac and bcma as suggested by "Linux

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: bcmwl-kernel-source
  ProcVersionSignature: Ubuntu 3.13.0-37.64-generic
  Uname: Linux 3.13.0-37-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.14.1-0ubuntu3.5
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Thu Oct  9 23:04:07 2014
  InstallationDate: Installed on 2014-09-27 (12 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  SourcePackage: bcmwl
  UpgradeStatus: No upgrade log present (probably fresh install)

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