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[jhouse <1305305@xxxxxxxxxxxxxxxxxx>]

I have the same problems.   I'm on a Sager laptop with an Intel 7260AC .
Worked fine for months (since last September) with previous releases
(had used backports and was most recently on kernel 3.11.0-20 before
upgrade to 14.04).

Connection now exhibits:   slowness (sporadically), drops  (anwhere from
3 minutes after connecting to 2 hours after), and loss of connection
after screen timeout lock and logging back in (which may just be the
same problem as the time).

When in the state of the connection having dropped, the listing of
wireless connections available to connect to shows all of my neighbors'
routers, but not mine.

Disabling wireless connections and then immediately re-enabling will re-
establish the connection for 2-120 minutes.

I will also note that when initially connecting, I will have good signal
strength indicated in the status widget (e.g. 3-4 bands) but that after
some minutes it shows weaker (1-2 bands).

All this without moving the physical location of the computer (distance
to router).

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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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