kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

avlas, could you please provide your home router manufacturer, model,
and firmware version?

As well, while the scope of this report will center around your home router, regarding your university router, do either or both of the following provide a WORKAROUND:
1) Adjust the line in /etc/modprobe.d/iwlwifi.conf to:
options iwlwifi 11n_disable=1

and then restart.

2) (This also applies to your home router): If power management is off, execute at a terminal:
sudo iwconfig wlan0 power off

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/1403142

Title:
  [Lenovo Thinkpad X1 Carbon 2nd Gen 20A7,20A8] iwlwifi intel 7260
  network does not connect

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Connection to the home and university wireless fail to connect. In the
  terminal I see repeated messages "no association and the time is
  already over". In contrast I can work and send this bug report through
  the hot spot wireless of my cellphone with no problem. I checked many
  bugs on the internet and tried many different things, none of those
  succeeded. For instance, I tried kernel from the proposed repository,
  I tried with multiple options of the iwlwifi module, I tried
  installing new versions of the firmware.

  03:00.0 Network controller [0280]: Intel Corporation Wireless 7260 [8086:08b2] (rev 83)
  	Subsystem: Intel Corporation Dual Band Wireless-AC 7260 [8086:c270]

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: linux-image-3.16.0-28-generic 3.16.0-28.37
  ProcVersionSignature: Ubuntu 3.16.0-28.37-generic 3.16.7-ckt1
  Uname: Linux 3.16.0-28-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  jsardid    2608 F.... pulseaudio
   /dev/snd/controlC0:  jsardid    2608 F.... pulseaudio
  CurrentDesktop: KDE
  Date: Tue Dec 16 11:49:01 2014
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2014-12-12 (4 days ago)
  InstallationMedia: Kubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: LENOVO 20A8S30G00
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-28-generic.efi.signed root=UUID=15cbe5cb-55eb-4579-8e23-dd0b1aa46557 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-28-generic N/A
   linux-backports-modules-3.16.0-28-generic  N/A
   linux-firmware                             1.138
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 11/20/2014
  dmi.bios.vendor: LENOVO
  dmi.bios.version: GRET42WW (1.19 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20A8S30G00
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0E50510 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrGRET42WW(1.19):bd11/20/2014:svnLENOVO:pn20A8S30G00:pvrThinkPadX1Carbon2nd:rvnLENOVO:rn20A8S30G00:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 20A8S30G00
  dmi.product.version: ThinkPad X1 Carbon 2nd
  dmi.sys.vendor: LENOVO

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