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[Bug 1360749] [NEW] Centrino Advanced-N 6200 Not Sustaining Wireless Connections

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Public bug reported:

I'm having issues sustaining wireless connections with a HP Pavilion dv8
Notebook PC using its internal wifi card which is a Centrino Advanced-N
6200.

While it is connected it performs well, but it often becomes disabled
and I have to toggle it back on using a touch-toggle-button located
above the number pad of the keyboard.

When it becomes disabled, no wi-fi connections are listed under Ubuntu's
network manager applet, but after toggling it back on, all the local
wifi connections reappear.

Sometimes this will happen 4 times in a 10 minute span, and other times
it will sustain the wifi connection for hours. I have experience this
behavior on multiple wifi routers, even on ones giving 5 bars (located
10 feet away).

In summary, it seems like it is toggling off (as though I manually
pressed the toggle button myself -- which is definitely not the case).


Laptop:

sudo dmidecode
Handle 0x0001, DMI type 1, 27 bytes
System Information
	Manufacturer: Hewlett-Packard
	Product Name: HP Pavilion dv8 Notebook PC
	Version: 0499220000241210001040000
	Wake-up Type: Power Switch
	SKU Number: WF681AV
	Family: 103C_5335KV

Wireless Adapter:

sudo lshw -C network
  *-network               
       description: Wireless interface
       product: Centrino Advanced-N 6200
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: wlan0
       version: 35
       serial: 00:27:10:15:55:c0
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlwifi driverversion=3.13.0-34-generic firmware=9.221.4.1 build 25532 ip=192.168.1.2 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
       resources: irq:47 memory:da100000-da101fff

sudo lspci | grep -i net
02:00.0 Network controller: Intel Corporation Centrino Advanced-N 6200 (rev 35)

sudo dmidecode
Handle 0x0015, DMI type 41, 11 bytes
Onboard Device
	Reference Designation: Intel(R) Centrino(R) Advanced-N 6200 AGN
	Type: Ethernet
	Status: Enabled
	Type Instance: 1
	Bus Address: 0000:02:00.0

Certification Catalog Entry:
http://www.ubuntu.com/certification/catalog/component/pci/8086%3A4239/ 

Also found this wireless card listed here:
http://wireless.kernel.org/en/users/Drivers/iwlwifi

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-34-generic 3.13.0-34.60
ProcVersionSignature: Ubuntu 3.13.0-34.60-generic 3.13.11.4
Uname: Linux 3.13.0-34-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.3
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC1:  lonnie     2490 F.... pulseaudio
                      lonnie     8626 F.... pulseaudio
 /dev/snd/controlC0:  lonnie     2490 F.... pulseaudio
                      lonnie     8626 F.... pulseaudio
CurrentDesktop: Unity
Date: Sun Aug 24 00:17:18 2014
HibernationDevice: RESUME=UUID=154ec9be-4204-4fe0-9dcd-3e13f4b66375
InstallationDate: Installed on 2014-07-30 (24 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
MachineType: Hewlett-Packard HP Pavilion dv8 Notebook PC
ProcFB:
 
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-34-generic root=UUID=abe40f0f-3966-4481-8a33-1372af32a315 ro quiet splash
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-34-generic N/A
 linux-backports-modules-3.13.0-34-generic  N/A
 linux-firmware                             1.127.5
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/31/2010
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.25
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 7001
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 35.35
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnHewlett-Packard:bvrF.25:bd05/31/2010:svnHewlett-Packard:pnHPPaviliondv8NotebookPC:pvr0499220000241210001040000:rvnHewlett-Packard:rn7001:rvr35.35:cvnHewlett-Packard:ct10:cvrN/A:
dmi.product.name: HP Pavilion dv8 Notebook PC
dmi.product.version: 0499220000241210001040000
dmi.sys.vendor: Hewlett-Packard

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


** Tags: amd64 apport-bug trusty

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1360749

Title:
  Centrino Advanced-N 6200 Not Sustaining Wireless Connections

Status in “linux” package in Ubuntu:
  New

Bug description:
  I'm having issues sustaining wireless connections with a HP Pavilion
  dv8 Notebook PC using its internal wifi card which is a Centrino
  Advanced-N 6200.

  While it is connected it performs well, but it often becomes disabled
  and I have to toggle it back on using a touch-toggle-button located
  above the number pad of the keyboard.

  When it becomes disabled, no wi-fi connections are listed under
  Ubuntu's network manager applet, but after toggling it back on, all
  the local wifi connections reappear.

  Sometimes this will happen 4 times in a 10 minute span, and other
  times it will sustain the wifi connection for hours. I have experience
  this behavior on multiple wifi routers, even on ones giving 5 bars
  (located 10 feet away).

  In summary, it seems like it is toggling off (as though I manually
  pressed the toggle button myself -- which is definitely not the case).

  
  Laptop:

  sudo dmidecode
  Handle 0x0001, DMI type 1, 27 bytes
  System Information
  	Manufacturer: Hewlett-Packard
  	Product Name: HP Pavilion dv8 Notebook PC
  	Version: 0499220000241210001040000
  	Wake-up Type: Power Switch
  	SKU Number: WF681AV
  	Family: 103C_5335KV

  Wireless Adapter:

  sudo lshw -C network
    *-network               
         description: Wireless interface
         product: Centrino Advanced-N 6200
         vendor: Intel Corporation
         physical id: 0
         bus info: pci@0000:02:00.0
         logical name: wlan0
         version: 35
         serial: 00:27:10:15:55:c0
         width: 64 bits
         clock: 33MHz
         capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
         configuration: broadcast=yes driver=iwlwifi driverversion=3.13.0-34-generic firmware=9.221.4.1 build 25532 ip=192.168.1.2 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
         resources: irq:47 memory:da100000-da101fff

  sudo lspci | grep -i net
  02:00.0 Network controller: Intel Corporation Centrino Advanced-N 6200 (rev 35)

  sudo dmidecode
  Handle 0x0015, DMI type 41, 11 bytes
  Onboard Device
  	Reference Designation: Intel(R) Centrino(R) Advanced-N 6200 AGN
  	Type: Ethernet
  	Status: Enabled
  	Type Instance: 1
  	Bus Address: 0000:02:00.0

  Certification Catalog Entry:
  http://www.ubuntu.com/certification/catalog/component/pci/8086%3A4239/ 

  Also found this wireless card listed here:
  http://wireless.kernel.org/en/users/Drivers/iwlwifi

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-34-generic 3.13.0-34.60
  ProcVersionSignature: Ubuntu 3.13.0-34.60-generic 3.13.11.4
  Uname: Linux 3.13.0-34-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.1-0ubuntu3.3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  lonnie     2490 F.... pulseaudio
                        lonnie     8626 F.... pulseaudio
   /dev/snd/controlC0:  lonnie     2490 F.... pulseaudio
                        lonnie     8626 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sun Aug 24 00:17:18 2014
  HibernationDevice: RESUME=UUID=154ec9be-4204-4fe0-9dcd-3e13f4b66375
  InstallationDate: Installed on 2014-07-30 (24 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  MachineType: Hewlett-Packard HP Pavilion dv8 Notebook PC
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-34-generic root=UUID=abe40f0f-3966-4481-8a33-1372af32a315 ro quiet splash
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-34-generic N/A
   linux-backports-modules-3.13.0-34-generic  N/A
   linux-firmware                             1.127.5
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/31/2010
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: F.25
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 7001
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: 35.35
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnHewlett-Packard:bvrF.25:bd05/31/2010:svnHewlett-Packard:pnHPPaviliondv8NotebookPC:pvr0499220000241210001040000:rvnHewlett-Packard:rn7001:rvr35.35:cvnHewlett-Packard:ct10:cvrN/A:
  dmi.product.name: HP Pavilion dv8 Notebook PC
  dmi.product.version: 0499220000241210001040000
  dmi.sys.vendor: Hewlett-Packard

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