kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

Jasdeep Khalsa, please execute the following command, as it will automatically gather debugging information, in a terminal:
apport-collect 1442781

** Package changed: linux-lts-utopic (Ubuntu) => linux (Ubuntu)

** Changed in: linux (Ubuntu)
   Importance: Undecided => Low

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1442781

Title:
  wifi continually tries to authenticate but fails on Ubuntu 14.04 LTS
  with network manager

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  -------------------------
  Summary of my particular setup
  -------------------------
  I am using a Lenovo Y50 Laptop which includes the following network cards/adaptors (which I checked with `sudo lshw -class network`):

    *-network               
         description: Wireless interface
         product: QCA9565 / AR9565 Wireless Network Adapter
         vendor: Qualcomm Atheros
         physical id: 0
         bus info: pci@0000:08:00.0
         logical name: wlan0
         version: 01
         serial: ac:b5:7d:71:1c:b9
         width: 64 bits
         clock: 33MHz
         capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical wireless
         configuration: broadcast=yes driver=ath9k driverversion=3.16.0-33-generic firmware=N/A ip=192.168.0.6 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
         resources: irq:17 memory:d1600000-d167ffff memory:d1680000-d168ffff

    *-network
         description: Ethernet interface
         product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
         vendor: Realtek Semiconductor Co., Ltd.
         physical id: 0
         bus info: pci@0000:09:00.0
         logical name: eth0
         version: 10
         serial: f0:76:1c:1f:4b:de
         size: 10Mbit/s
         capacity: 1Gbit/s
         width: 64 bits
         clock: 33MHz
         capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
         configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168g-3_0.0.1 04/23/13 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
         resources: irq:46 ioport:3000(size=256) memory:d1504000-d1504fff memory:d1500000-d1503fff


  I have read reviews that these adapters are not very good - i.e. they
  are a bit old. They also cannot find 5G wifi networks, only 2G ones.

  The laptop came with Windows 8.1 64 but I installed Ubuntu 14.04 64
  Bit alongside Windows, even though I only boot into my Ubuntu
  partition now.

  Also, I have installed both WICD Network Manager AND Ubuntu's Network
  Manager on my system, but for the purposes of this bug I am only using
  Ubuntu's Network Manager i.e. I am not opening WICD. I am including
  this information in case even installing WICD may be causing a
  conflict.

  -------------------------
  The problem
  -------------------------
  At work I use Ethernet, so when I plug the cable in in the morning my computer connects straight away to the internet through Network Manager!

  When I come home, I use wifi and expect it to connect straight away
  but it keeps saying its authenticating and then does not connect. I
  can see all the 2G wifi networks, but network manager just cannot
  connect to them straight away. Network manager will keep trying for up
  to an hour and then suddenly it will connect like magic!

  -------------------------
  What solutions I tried that did not work
  -------------------------
  * Using software updater to update my system fully
  * Restarting my laptop
  * Restarting the router
  * Connecting to the wifi with my phone (works fine!) whilst I am struggling to connect with my laptop
  * Disabling network manager and re-enabling it
  * Disabling wifi then re-enabling it
  * Disabling wifi and networking and then re-enabling it
  * In Terminal: `sudo service network-manager restart`

  -------------------------
  What I am going to try
  -------------------------
  * Move fully to WICD (which I have done in the past!) OR delete WICD totally and only keep network manager
  * Check to see if my particular card has any known issues with Ubuntu and try to solve those
  * I'm open to other suggestions

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.16.0-33-generic 3.16.0-33.44~14.04.1
  ProcVersionSignature: Ubuntu 3.16.0-33.44~14.04.1-generic 3.16.7-ckt7
  Uname: Linux 3.16.0-33-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.7
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Fri Apr 10 20:04:48 2015
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2015-03-23 (17 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  SourcePackage: linux-lts-utopic
  UpgradeStatus: No upgrade log present (probably fresh install)

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