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[TJ <ubuntu@xxxxxx>]

So it seems since reconfiguring the Access Point to use mode 'auto' and
channel 'auto' the poor performace has been cured?

The disconnect you report looks to be isolated:

Aug 31 18:00:00 Saria-Lin kernel: [ 7467.759694] wlan0: deauthenticating
from 00:25:9c:9d:47:37 by local choice (Reason: 3=DEAUTH_LEAVING)

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https://bugs.launchpad.net/bugs/1437988

Title:
  10ec:8179 wireless network and browser issues

Status in linux package in Ubuntu:
  In Progress

Bug description:
  My wireless adapter connecting to my Linsksys wrt120N (firmware
  version 1.0.07) that constantly drops, only when running Ubuntu. Also
  no matter which browser I use it will arbitrarily max out the CPU
  usage and lock me up at times.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-48-generic 3.13.0-48.80
  ProcVersionSignature: Ubuntu 3.13.0-48.80-generic 3.13.11-ckt16
  Uname: Linux 3.13.0-48-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.7
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  karl       2708 F.... pulseaudio
   /dev/snd/controlC1:  karl       2708 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sun Mar 29 22:45:34 2015
  HibernationDevice: RESUME=UUID=e720cd76-77cb-4087-bfcc-876f10ecb858
  InstallationDate: Installed on 2015-02-13 (44 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  Lsusb:
   Bus 001 Device 002: ID 8087:8000 Intel Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 002 Device 002: ID 0c45:6516 Microdia
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Hewlett-Packard HP 15 Notebook PC
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-48-generic.efi.signed root=UUID=fd43416e-9f3d-47f8-826d-37ffc7fdf565 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-48-generic N/A
   linux-backports-modules-3.13.0-48-generic  N/A
   linux-firmware                             1.127.11
  RfKill:
   0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/25/2014
  dmi.bios.vendor: Insyde
  dmi.bios.version: F.04
  dmi.board.asset.tag: Type2 - Board Asset Tag
  dmi.board.name: 8014
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: 10.02
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnInsyde:bvrF.04:bd08/25/2014:svnHewlett-Packard:pnHP15NotebookPC:pvr0974100002405F00000620180:rvnHewlett-Packard:rn8014:rvr10.02:cvnHewlett-Packard:ct10:cvrChassisVersion:
  dmi.product.name: HP 15 Notebook PC
  dmi.product.version: 0974100002405F00000620180
  dmi.sys.vendor: Hewlett-Packard

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