Comment 0 for bug 1318110

Hi Guys,
Logging bug as requested:

I believe related to Intel driver / firmware - iwfwifi-7260-7.ucode and/or iwfwifi-7260-8.ucode

Original post from "https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1305305"

"I have the same issues as descibed above with brand new Intel 7260ac card.

Dell E4300 laptop - (4GB/Samsung evo 250gb) on Ubuntu 14.04 3.13.0-24-generic
Intel Driver version - 22.24.8.0 (this is shown when running "dmesg | grep iwl" in terminal)

Fresh install of Linux and all updates installed - this issue occured on the prior installation of Ubuntu as well.
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.

Apologies for the wall of text. :)

Kind regards,
Ej."

Apologies in advance if I have missed any important details, if so I'm happy to help. :)

I have dropped the beacon interval as advised and am testing to see how it goes.
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.

If I can provide any other information or perform testing, please advise.

Thanks again,

Ej.

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.