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[florin <1543254@xxxxxxxxxxxxxxxxxx>]

I have tested the latest mainline v4.5  kernel for a few days and until
right now, the bug did not occur. Until now, as it happened half an hour
ago. It seems to happen a lot less often than old kernel, but it does.
It might be a coincidence, cannot tell. At first, I would imagine it is
a problem of the network manager, not a kernel bug, as the it can
connect to the network, but it can only do that if I get to Connect to
hidden wifi and select it from the dropdown list. It is strage my
network shows there as it is not a hidden wifi network. I would think
the network manager does not manage properly the detected networks.

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https://bugs.launchpad.net/bugs/1543254

Title:
  Wifi disconnects and my wifi is missing from list so I cannot connect
  to it

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  For a few times a day, my wifi disconnects. If I try to connect to it
  manually, I cannot do that as it is missing from the list with nearby
  connections. I have discovered a way to connect by going to  Connect
  to hidden Wifi Connection, select the dropdown and chose from that
  list my home wifi network. It works. But of course, a few hours later,
  it will disconnect and I have to do this again. I should mention that
  my wifi is not a hidden one, never has been.

  See the attached screen recording. It happened the same on the old
  laptop (Atheros Communications Inc. AR9285) and the same on the new
  one (Intel Corporation Wireless 3165). The bug is quite old, I think
  it was a few Ubuntu versions behind, too.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-27-generic 4.2.0-27.32
  ProcVersionSignature: Ubuntu 4.2.0-27.32-generic 4.2.8-ckt1
  Uname: Linux 4.2.0-27-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  florin     1578 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Mon Feb  8 21:04:27 2016
  HibernationDevice: RESUME=UUID=e6dd3a64-131e-4aee-8ed4-84e81029859e
  InstallationDate: Installed on 2016-01-30 (8 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 002: ID 13d3:5652 IMC Networks
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: TOSHIBA SATELLITE P50-C
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-27-generic root=UUID=99542f8d-67cc-4ee6-bd91-596c9a4709ee ro persistent quiet splash
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-27-generic N/A
   linux-backports-modules-4.2.0-27-generic  N/A
   linux-firmware                            1.149.3
  SourcePackage: linux
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/08/2015
  dmi.bios.vendor: INSYDE Corp.
  dmi.bios.version: 1.20
  dmi.board.name: 06F4
  dmi.board.vendor: FF50
  dmi.board.version: Type2 - Board Version
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: OEM Chassis ManuFacturer
  dmi.chassis.version: OEM Chassis Version
  dmi.modalias: dmi:bvnINSYDECorp.:bvr1.20:bd10/08/2015:svnTOSHIBA:pnSATELLITEP50-C:pvrPSPUFE-001009G6:rvnFF50:rn06F4:rvrType2-BoardVersion:cvnOEMChassisManuFacturer:ct10:cvrOEMChassisVersion:
  dmi.product.name: SATELLITE P50-C
  dmi.product.version: PSPUFE-001009G6
  dmi.sys.vendor: TOSHIBA

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