Hello,
I do experience precisely the same error on a Lenovo Thinkpad x230 with
kubuntu 15.04. The x230 has the Centrino Advanced 6205 N wifi chipset.
The error did not occur with Debian 7, I had this set up on the machine
before.
The bug really is extremely menacing, one is forced to reconnect
multiple times per day, sometimes every ten minutes or so. I am glad to
finally see a bug report.
** Changed in: linux (Ubuntu)
Status: Expired => Confirmed
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https://bugs.launchpad.net/bugs/1420243
Title:
iwlwifi + intel 6205 + tp-link 4300: bandwidth changed = host
unreachable
Status in linux package in Ubuntu:
Confirmed
Bug description:
when using the combo of Intel 6205N (IBM ThinkPad T430s) and TP-Link
TL-WDR4300 router there is a problem of sudden loss of connectivity
after a "bandwidth change" event is registered by wifi module.
In log:
Feb 10 13:09:28 lenovo kernel: [1981878.856612] wlan0: AP <redacted> changed
bandwidth, new config is 2462 M
Hz, width 1 (2462/0 MHz)
Feb 10 13:09:31 lenovo kernel: [1981881.929193] wlan0: AP <redacted> changed
bandwidth, new config is 2462 M
Hz, width 2 (2452/0 MHz)
After that point no frames are coming from the router. I.e. even ARP
is not resolving, although the wifi connection seems to look fine in
NetworkManager. Restarting networking or killing wpa_supplicant solves
the problem for a while.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-extra-3.13.0-38-generic 3.13.0-38.65
ProcVersionSignature: Ubuntu 3.13.0-45.74-generic 3.13.11-ckt13
Uname: Linux 3.13.0-45-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.7
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: kit 2467 F.... pulseaudio
CRDA:
country IL:
(2402 - 2482 @ 40), (N/A, 20)
(5150 - 5250 @ 40), (N/A, 23), NO-OUTDOOR
(5250 - 5350 @ 40), (N/A, 23), NO-OUTDOOR, DFS
CurrentDesktop: Unity
Date: Tue Feb 10 13:19:45 2015
HibernationDevice: RESUME=UUID=5719e2ac-f0f6-464f-99cf-f732c3ec9606
InstallationDate: Installed on 2014-01-28 (378 days ago)
InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release amd64
(20130820.1)
MachineType: LENOVO 235389G
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-45-generic.efi.signed
root=UUID=0c5e577c-b641-490c-ae43-f88b134fe24a ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.13.0-45-generic N/A
linux-backports-modules-3.13.0-45-generic N/A
linux-firmware 1.127.11
SourcePackage: linux
UpgradeStatus: Upgraded to trusty on 2014-09-07 (156 days ago)
dmi.bios.date: 02/18/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: G7ET92WW (2.52 )
dmi.board.asset.tag: Not Available
dmi.board.name: 235389G
dmi.board.vendor: LENOVO
dmi.board.version: Win8 Pro DPK TPG
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvrG7ET92WW(2.52):bd02/18/2013:svnLENOVO:pn235389G:pvrThinkPadT430s:rvnLENOVO:rn235389G:rvrWin8ProDPKTPG:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 235389G
dmi.product.version: ThinkPad T430s
dmi.sys.vendor: LENOVO
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