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[jimlovell777 <1514316@xxxxxxxxxxxxxxxxxx>]

I just downloaded xenial-desktop-amd64.iso from your link and did a
complete fresh install to an unformatted drive. Same issue as reported.
Wireless works fine in the live environment. My access point shows up, I
can connect to it, browse the web and download updates while installing.
After installing, I shutdown, remove the installation media (CD and USB
stick attempted) and boot.

Result is no wireless card recognized and I can't connect to anything.

uname -r 
    4.2.0.19-generic

lsb_release -rd
    Desciption: Ubuntu Xenial Xerus (developement branch)
    Release: 16.04

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https://bugs.launchpad.net/bugs/1514316

Title:
  Wireless Works On Live CD Stopped Working After Installation 0bda:8172
  Realtek Semiconductor Corp. RTL8191SU 802.11n WLAN Adapter

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I booted my computer using an Ubuntu 15.10 64-bit Desktop live CD  and
  wifi worked no problem. After installing Ubuntu 15.10 to disk,
  wireless no longer works. I can see the wireless device using lsusb
  but it is not an option to use in network-manager, and does not show
  up in /etc/network/interfaces.

  Bus 002 Device 003: ID 0bda:8172 Realtek Semiconductor Corp. RTL8191SU
  802.11n WLAN Adapter

  My computer does not have an airplane mode button. The wireless card
  is not disabled that I can tell or from my own actions.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-17-generic 4.2.0-17.21
  ProcVersionSignature: Ubuntu 4.2.0-17.21-generic 4.2.3
  Uname: Linux 4.2.0-17-generic x86_64
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  AudioDevicesInUse:
   USER PID ACCESS COMMAND
   /dev/snd/controlC1: portal 1106 F.... pulseaudio
   /dev/snd/controlC0: portal 1106 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sun Nov 8 23:34:40 2015
  HibernationDevice: RESUME=UUID=72107d2b-667e-4e55-9eab-dfc18a940de3
  InstallationDate: Installed on 2015-11-09 (0 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  MachineType: Gateway ZX6961
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-17-generic.efi.signed root=UUID=fc9edda2-408b-4a6d-8733-525acc239e95 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-17-generic N/A
   linux-backports-modules-4.2.0-17-generic N/A
   linux-firmware 1.149.2
  RfKill:
  SourcePackage: linux
  StagingDrivers: r8712u
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/22/2011
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P01-B3
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: ZX6961
  dmi.board.vendor: Gateway
  dmi.chassis.type: 13
  dmi.chassis.vendor: Gateway
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP01-B3:bd07/22/2011:svnGateway:pnZX6961:pvr:rvnGateway:rnZX6961:rvr:cvnGateway:ct13:cvr:
  dmi.product.name: ZX6961
  dmi.sys.vendor: Gateway

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