** Description changed: - Maybe related to - - https://bugzilla.redhat.com/show_bug.cgi?id=785239 - - Symptoms: - - After a few minutes, the WiFi connection to my home router first becomes - slow (packet loss), then entirely unusable. NetWork manager still shows - the connection as up and working. + Symptoms: After a few minutes, the WiFi connection to my home router + first becomes slow (packet loss), then entirely unusable. NetWork + manager still shows the connection as up and working. dmesg shows messages like these: - Aug 9 06:17:16 thinkpad kernel: [ 5026.531127] iwlwifi 0000:02:00.0: Tx aggrega tion enabled on ra = b0:48:7a:d6:91:50 tid = 6 - Quick workaround is to use rfkill to disable and enable WiFi. Long-term - workaround is mentioned in bugzilla bug above, to put - + WORKAROUND: rfkill to disable and enable WiFi, or add: options iwlwifi 11n_disable=1 to /etc/modprobe.d/iwlwifi.conf - However, this means that all my network connections will only run in - 802.11a/g mode, which is undesirably slow. - - Hardware: - - 02:00.0 Network controller: Intel Corporation Centrino Ultimate-N 6300 - (rev 35) - + However, this means that all my network connections will only run in 802.11a/g mode, which is undesirably slow. Other people using MacOS in my place don't observe any issues, so I can rule out the router(s) as the culprits. + Hardware: 02:00.0 Network controller: Intel Corporation Centrino Ultimate-N 6300 (rev 35) Routers: TP-Link WR1043ND, WR2543ND using OpenWRT trunk. - - Other people using MacOS in my place don't observe any issues, so I can - rule out the router(s) as the culprits. - - Alex ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-27-generic 3.2.0-27.43 ProcVersionSignature: Ubuntu 3.2.0-27.43-generic 3.2.21 Uname: Linux 3.2.0-27-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu12 Architecture: amd64 ArecordDevices: - **** List of CAPTURE Hardware Devices **** - card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog] - Subdevices: 1/1 - Subdevice #0: subdevice #0 + **** List of CAPTURE Hardware Devices **** + card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog] + Subdevices: 1/1 + Subdevice #0: subdevice #0 AudioDevicesInUse: - USER PID ACCESS COMMAND - /dev/snd/controlC29: alex 2261 F.... xfce4-volumed - /dev/snd/controlC0: alex 2250 F.... pulseaudio - alex 2261 F.... xfce4-volumed + USER PID ACCESS COMMAND + /dev/snd/controlC29: alex 2261 F.... xfce4-volumed + /dev/snd/controlC0: alex 2250 F.... pulseaudio + alex 2261 F.... xfce4-volumed CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: - Card hw:0 'Intel'/'HDA Intel at 0xf2520000 irq 44' - Mixer name : 'Intel IbexPeak HDMI' - Components : 'HDA:14f15069,17aa2155,00100302 HDA:80862804,17aa21b5,00100000' - Controls : 14 - Simple ctrls : 6 + Card hw:0 'Intel'/'HDA Intel at 0xf2520000 irq 44' + Mixer name : 'Intel IbexPeak HDMI' + Components : 'HDA:14f15069,17aa2155,00100302 HDA:80862804,17aa21b5,00100000' + Controls : 14 + Simple ctrls : 6 Card29.Amixer.info: - Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 6QHT33WW-1.14' - Mixer name : 'ThinkPad EC 6QHT33WW-1.14' - Components : '' - Controls : 1 - Simple ctrls : 1 + Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 6QHT33WW-1.14' + Mixer name : 'ThinkPad EC 6QHT33WW-1.14' + Components : '' + Controls : 1 + Simple ctrls : 1 Card29.Amixer.values: - Simple mixer control 'Console',0 - Capabilities: pswitch pswitch-joined penum - Playback channels: Mono - Mono: Playback [on] + Simple mixer control 'Console',0 + Capabilities: pswitch pswitch-joined penum + Playback channels: Mono + Mono: Playback [on] Date: Thu Aug 9 12:24:19 2012 HibernationDevice: RESUME=UUID=9fee4cfb-53b9-43d7-8425-1666aff145c4 InstallationMedia: Xubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) MachineType: LENOVO 3626A14 ProcEnviron: - LANGUAGE=en_US:en - TERM=xterm - PATH=(custom, no user) - LANG=en_US.UTF-8 - SHELL=/bin/bash + LANGUAGE=en_US:en + TERM=xterm + PATH=(custom, no user) + LANG=en_US.UTF-8 + SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-27-generic root=/dev/mapper/hostname-root ro quiet splash vt.handoff=7 RelatedPackageVersions: - linux-restricted-modules-3.2.0-27-generic N/A - linux-backports-modules-3.2.0-27-generic N/A - linux-firmware 1.79 + linux-restricted-modules-3.2.0-27-generic N/A + linux-backports-modules-3.2.0-27-generic N/A + linux-firmware 1.79 SourcePackage: linux StagingDrivers: mei UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/26/2012 dmi.bios.vendor: LENOVO dmi.bios.version: 6QET69WW (1.39 ) dmi.board.name: 3626A14 dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr6QET69WW(1.39):bd04/26/2012:svnLENOVO:pn3626A14:pvrThinkPadX201:rvnLENOVO:rn3626A14:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3626A14 dmi.product.version: ThinkPad X201 dmi.sys.vendor: LENOVO
** Summary changed: - iwlwifi drops connection when using 802.11n + 8086:4238] iwlwifi drops connection when using 802.11n ** Summary changed: - 8086:4238] iwlwifi drops connection when using 802.11n + 8086:4238 iwlwifi drops connection when using 802.11n -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1034740 Title: 8086:4238 iwlwifi drops connection when using 802.11n To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1034740/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
