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[Bug 1396338] [NEW] [Dell Latitude E7440] Wifi keeps dropping with Intel Wireless 7260

 

Public bug reported:

Submitted by request of seth.forshee+lp@xxxxxxxxxxxxx - refer to bug
#1329040

The frequency of the problem has dropped considerably after moving to a
less congested channel, but it still happens - I am stationary at about
3 meters from the access point. Other devices (Android phones, iPad,
other laptops) are connecting to the same access point with no problems
at all.

The problematic line in the dmesg output is
wlan0: deauthenticated from 00:16:b6:01:69:74 (Reason: 7=CLASS3_FRAME_FROM_NONASSOC_STA)

After the connection is dropped, a hardware switch disconnect/connect is
necessary to re-establish connection, the connection does not
automatically reappear.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: linux-image-3.16.0-24-generic 3.16.0-24.32
ProcVersionSignature: Ubuntu 3.16.0-24.32-generic 3.16.4
Uname: Linux 3.16.0-24-generic x86_64
ApportVersion: 2.14.7-0ubuntu8
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  niels      2502 F.... pulseaudio
 /dev/snd/controlC1:  niels      2502 F.... pulseaudio
CurrentDesktop: Unity
Date: Tue Nov 25 21:24:21 2014
HibernationDevice: RESUME=UUID=fe0b3838-4f25-4296-a7c7-872862359ccf
InstallationDate: Installed on 2014-10-16 (40 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
MachineType: Dell Inc. Latitude E7440
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-24-generic root=UUID=28b33773-57cd-4cb6-bd65-1c2acadbd079 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.16.0-24-generic N/A
 linux-backports-modules-3.16.0-24-generic  N/A
 linux-firmware                             1.138
SourcePackage: linux
UpgradeStatus: Upgraded to utopic on 2014-10-25 (31 days ago)
dmi.bios.date: 06/26/2014
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A10
dmi.board.name: 03HFCG
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA10:bd06/26/2014:svnDellInc.:pnLatitudeE7440:pvr01:rvnDellInc.:rn03HFCG:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E7440
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug utopic

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https://bugs.launchpad.net/bugs/1396338

Title:
  [Dell Latitude E7440] Wifi keeps dropping with Intel Wireless 7260

Status in “linux” package in Ubuntu:
  New

Bug description:
  Submitted by request of seth.forshee+lp@xxxxxxxxxxxxx - refer to bug
  #1329040

  The frequency of the problem has dropped considerably after moving to
  a less congested channel, but it still happens - I am stationary at
  about 3 meters from the access point. Other devices (Android phones,
  iPad, other laptops) are connecting to the same access point with no
  problems at all.

  The problematic line in the dmesg output is
  wlan0: deauthenticated from 00:16:b6:01:69:74 (Reason: 7=CLASS3_FRAME_FROM_NONASSOC_STA)

  After the connection is dropped, a hardware switch disconnect/connect
  is necessary to re-establish connection, the connection does not
  automatically reappear.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: linux-image-3.16.0-24-generic 3.16.0-24.32
  ProcVersionSignature: Ubuntu 3.16.0-24.32-generic 3.16.4
  Uname: Linux 3.16.0-24-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  niels      2502 F.... pulseaudio
   /dev/snd/controlC1:  niels      2502 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Tue Nov 25 21:24:21 2014
  HibernationDevice: RESUME=UUID=fe0b3838-4f25-4296-a7c7-872862359ccf
  InstallationDate: Installed on 2014-10-16 (40 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  MachineType: Dell Inc. Latitude E7440
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-24-generic root=UUID=28b33773-57cd-4cb6-bd65-1c2acadbd079 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-24-generic N/A
   linux-backports-modules-3.16.0-24-generic  N/A
   linux-firmware                             1.138
  SourcePackage: linux
  UpgradeStatus: Upgraded to utopic on 2014-10-25 (31 days ago)
  dmi.bios.date: 06/26/2014
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A10
  dmi.board.name: 03HFCG
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA10:bd06/26/2014:svnDellInc.:pnLatitudeE7440:pvr01:rvnDellInc.:rn03HFCG:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: Latitude E7440
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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