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[sbms81 <1046800@xxxxxxxxxxxxxxxxxx>]

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Title:
  Wi-Fi intermittent and slow -- Atheros AR9287 ath9k

Status in linux package in Ubuntu:
  Fix Released

Bug description:
  Wireless transfer is extremely slow (and choppy, hangs, slows down,
  speeds up, stops for some time).

  Expectet transfer speed using ssh (one ubuntu.iso 700MB file) is 5-7MB/s 
  Actual transfer speed using ssh (one ubuntu.iso 700MB file) is 0-1MB/s

  
  iwconfig:

  IEEE 802.11bgn  ESSID:"Twin"  
            Mode:Managed  Frequency:2.437 GHz  Access Point: 74:44:01:36:DE:44   
            Bit Rate=144.4 Mb/s   Tx-Power=16 dBm   
            Retry  long limit:7   RTS thr:off   Fragment thr:off
            Power Management:off
            Link Quality=70/70  Signal level=-31 dBm  
            Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
            Tx excessive retries:217  Invalid misc:804   Missed beacon:0

  Additional info:
  I've got Ubuntu 12.04 and 12.10 on this laptop. Wireless is working as expected in 12.04.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: network-manager 0.9.6.0-0ubuntu5
  ProcVersionSignature: Ubuntu 3.5.0-13.14-generic 3.5.3
  Uname: Linux 3.5.0-13-generic x86_64
  ApportVersion: 2.5.1-0ubuntu4
  Architecture: amd64
  Date: Thu Sep  6 13:53:43 2012
  IfupdownConfig:
   auto lo
   iface lo inet loopback
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120820)
  IpRoute:
   default via 192.168.1.1 dev wlan0  proto static 
   169.254.0.0/16 dev wlan0  scope link  metric 1000 
   192.168.1.0/24 dev wlan0  proto kernel  scope link  src 192.168.1.61  metric 9
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=true
   WimaxEnabled=true
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: network-manager
  UpgradeStatus: No upgrade log present (probably fresh install)
  nmcli-con:
   NAME                      UUID                                   TYPE              TIMESTAMP    TIMESTAMP-REAL                     AUTOCONNECT   READONLY   DBUS-PATH                                 
   Wired connection 1        b8d8726d-a290-4718-9e08-d70dc2436c4f   802-3-ethernet    1346798450   Wed 05 Sep 2012 12:40:50 AM CEST   yes           no         /org/freedesktop/NetworkManager/Settings/2
   Evjenveien 99b            d99ae224-97f8-4563-a707-dddf57642914   802-11-wireless   1346523533   Sat 01 Sep 2012 08:18:53 PM CEST   yes           no         /org/freedesktop/NetworkManager/Settings/1
   Twin                      2830871f-6c1f-4e2d-8ceb-6e594029373b   802-11-wireless   1346932350   Thu 06 Sep 2012 01:52:30 PM CEST   yes           no         /org/freedesktop/NetworkManager/Settings/0
  nmcli-dev:
   DEVICE     TYPE              STATE         DBUS-PATH                                  
   wlan0      802-11-wireless   connected     /org/freedesktop/NetworkManager/Devices/1  
   eth0       802-3-ethernet    unavailable   /org/freedesktop/NetworkManager/Devices/0
  nmcli-nm:
   RUNNING         VERSION    STATE           NET-ENABLED   WIFI-HARDWARE   WIFI       WWAN-HARDWARE   WWAN      
   running         0.9.6.0    connected       enabled       enabled         enabled    enabled         enabled

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