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[Ej <edsjag@xxxxxxxxx>]

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 has 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 dB to 120 then 140 but this made the connection worse (noise to
signal was awful).   Once router reset back to default at 100dB it
returned to the same as prior.

Apologies for the wall of text.  :)

Kind regards,
Ej.

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https://bugs.launchpad.net/bugs/1305305

Title:
  8086:08b1 [Sony VAIO SVP1321M2E] Wifi keeps dropping.

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Using a Sony Vaio Pro 13 with Ubuntu 14.04 the wifi keeps dropping. Sometimes all the time, at times after a bit longer (~10 min). A few packages ago it didn't drop, but was really, really, slow. Now it completely drops. Adding the following to modprobe.conf made no change:
  options iwlwifi 11ac_disable=1
  options iwlwifi 11n_disable=1

  After each new row I ran:
  sudo modprobe -rfv iwlwifi
  sudo modprobe -v iwlwifi

  Tried turning off the power management of wlan0 without any change.

  WORKAROUND: Within 2 m I have full speed and no disconnects.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-generic 3.13.0.19.23
  ProcVersionSignature: Ubuntu 3.13.0-19.39-generic 3.13.6
  Uname: Linux 3.13.0-19-generic x86_64
  ApportVersion: 2.14.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  daniel     2105 F.... pulseaudio
   /dev/snd/controlC1:  daniel     2105 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Wed Apr  9 22:44:08 2014
  HibernationDevice: RESUME=UUID=a8a44495-3583-451d-99c8-b5be0e8cf0ca
  InstallationDate: Installed on 2014-04-09 (0 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140323)
  MachineType: Sony Corporation SVP1321M2EB
  ProcEnviron:
   LANGUAGE=sv
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=sv_SE.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-19-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-19-generic N/A
   linux-backports-modules-3.13.0-19-generic  N/A
   linux-firmware                             1.127
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 11/21/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: R1043V7
  dmi.board.asset.tag: N/A
  dmi.board.name: VAIO
  dmi.board.vendor: Sony Corporation
  dmi.board.version: N/A
  dmi.chassis.asset.tag: N/A
  dmi.chassis.type: 10
  dmi.chassis.vendor: Sony Corporation
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrR1043V7:bd11/21/2013:svnSonyCorporation:pnSVP1321M2EB:pvrC60C0754:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
  dmi.product.name: SVP1321M2EB
  dmi.product.version: C60C0754
  dmi.sys.vendor: Sony Corporation

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