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[Liming Wang <liming.wang@xxxxxxxxxxxxx>]

@Po-Hsu Lin

My question is that whether the linux driver is related with the issue? 
If you don't install linux, and just power it on (not boot to linux) and  power it off, does the mac address also get an invalid address? If yes, it seems that it's the hardware issue. Please help me to test. Thanks a lot!

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https://bugs.launchpad.net/bugs/1358704

Title:
  Atheros AR8161[1969:1091] and AR8162 [1969:1090] mac address would
  change after powered off for a while

Status in HWE Next Project:
  Confirmed
Status in linux-lts-trusty package in Ubuntu:
  New

Bug description:
  CID: 201202-10508 
  CID: 201202-10511
  CID: 201202-10527

  The MAC address would change after you power off the system for a
  while (few days)

  201202-10508 and 201202-10511 equipped with AR8162 [1969:1090]
  201202-10527 equipped with AR8161[1969:1091]

  I found this issue when trying to install 12.04.5 via PXE network installation.
  The MAC address changing pattern is interesting, there is a common address they will change into - 00:13:74:00:00:00

  This looks like a HW issue, but I'm not very confident about it.

  Maybe not a big deal, but this issue would prevent these system from
  being selected into our SRU pool, the worse scenario is that this
  system is attached to a MAC-address-registered network (my dormitory
  network back into university require users to register they MAC
  address)

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.13.0-32-generic 3.13.0-32.57~precise1 [modified: boot/vmlinuz-3.13.0-32-generic]
  ProcVersionSignature: Ubuntu 3.13.0-32.57~precise1-generic 3.13.11.4
  Uname: Linux 3.13.0-32-generic x86_64
  ApportVersion: 2.0.1-0ubuntu17.6
  Architecture: amd64
  Date: Tue Aug 19 06:00:11 2014
  InstallationMedia: Ubuntu 12.04.5 LTS "Precise Pangolin" - Release amd64 (20140807.1)
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: linux-lts-trusty
  UpgradeStatus: No upgrade log present (probably fresh install)

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