Ej, did this problem not occur in a release prior to Trusty? ** Tags added: needs-wifi-debug regression-potential
-- 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/1318110 Title: 8086:08b1 (rev 73) [Dell Latitude E4300] Stability of Intel 7260ac mini wifi card Status in “linux” package in Ubuntu: Incomplete Bug description: Fresh install of Linux and all updates installed. This issue occured on the prior installation of Ubuntu as well (what version specifically???). Will work connect perfectly on boot and works fine for 10mins - a few hours then it drops out and won't reconnect until system is put in standby (shut lid to standby) and then power back up (open lid to power back up) - then wifi connects and runs fine. I too get the varying signal strength issue - not physically moving laptop at all and signal will jump from 4 bars to 1 then after a while it jumps back to 4 bars again. Laptop is only 4-5 meters away from WiFi router but through one heavy brick wall. I have tried upping the output of the router (Linksys w/ DD-WRT) from 100 mw to 120 then 140 but this made the connection worse (noise to signal was awful). Once router reset back to default at 100mw it returned to the same as prior. Additionally, if I change router settings and the laptop drops the connection (as it might depending on setting changed), sometimes it will reconnect automatically, sometimes not. If the system is put in standby for a few seconds and woken (as descibed above) it will pick the connection back up every time. I have dropped the beacon interval as advised and am testing to see how it goes. I believe related to Intel driver / firmware - iwfwifi-7260-7.ucode and/or iwfwifi-7260-8.ucode Network controller [0280]: Intel Corporation Wireless 7260 [8086:08b1] (rev 73) Subsystem: Intel Corporation Dual Band Wireless-AC 7260 [8086:4070] ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.47 ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ej 2217 F.... pulseaudio /dev/snd/pcmC0D0p: ej 2217 F...m pulseaudio CurrentDesktop: Unity Date: Sat May 10 11:24:51 2014 HibernationDevice: RESUME=UUID=25ef29f2-d739-442c-b2ea-6b5eb584fa26 InstallationDate: Installed on 2014-05-08 (1 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: Dell Inc. Latitude E4300 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-24-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/04/2013 dmi.bios.vendor: Dell Inc. dmi.bios.version: A26 dmi.board.name: 0J795R dmi.board.vendor: Dell Inc. dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA26:bd06/04/2013:svnDellInc.:pnLatitudeE4300:pvr:rvnDellInc.:rn0J795R:rvr:cvnDellInc.:ct8:cvr: dmi.product.name: Latitude E4300 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1318110/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
