Public bug reported:

with Intel Corporation PRO/Wireless 4965 AG or AGN [Kedron] Network
Connection (rev 61) my internet download rate is 4 times slower than
when i use a wired connection. This is not the case when using ubuntu
10.04.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: network-manager-gnome 0.9.4.1-0ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu1
Architecture: amd64
Date: Wed Apr 11 22:43:23 2012
IfupdownConfig:
 auto lo
 iface lo inet loopback
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328)
IpRoute:
 default via 192.168.1.1 dev eth0  proto static 
 169.254.0.0/16 dev wlan0  scope link  metric 1000 
 192.168.1.0/24 dev eth0  proto kernel  scope link  src 192.168.1.99  metric 1 
 192.168.1.0/24 dev wlan0  proto kernel  scope link  src 192.168.1.65  metric 2
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
 WimaxEnabled=true
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
SourcePackage: network-manager-applet
UpgradeStatus: No upgrade log present (probably fresh install)
nmcli-con:
 NAME                      UUID                                   TYPE          
    TIMESTAMP    TIMESTAMP-REAL                     AUTOCONNECT   READONLY   
DBUS-PATH                                 
 NETGEAR                   8c2856be-83c0-42e4-ad82-623cff2b6077   
802-11-wireless   1333958388   lun. 09 avril 2012 09:59:48 CEST   yes           
no         /org/freedesktop/NetworkManager/Settings/2
 NEUF_8EA0                 68d62c85-48e1-460b-b280-1c5bec30aab9   
802-11-wireless   1334176997   mer. 11 avril 2012 22:43:17 CEST   yes           
no         /org/freedesktop/NetworkManager/Settings/1
 Connexion filaire 1       91429466-2de3-48c8-840f-27c2e8ad9668   
802-3-ethernet    1334176997   mer. 11 avril 2012 22:43:17 CEST   yes           
no         /org/freedesktop/NetworkManager/Settings/0
 SFR WiFi FON              cffd1bf8-c965-425e-963f-cc0bdf6a3d06   
802-11-wireless   1333785912   sam. 07 avril 2012 10:05:12 CEST   yes           
no         /org/freedesktop/NetworkManager/Settings/3
nmcli-dev:
 DEVICE     TYPE              STATE         DBUS-PATH                           
       
 wlan0      802-11-wireless   connected     
/org/freedesktop/NetworkManager/Devices/1  
 eth0       802-3-ethernet    connected     
/org/freedesktop/NetworkManager/Devices/0
nmcli-nm:
 RUNNING         VERSION    STATE           NET-ENABLED   WIFI-HARDWARE   WIFI  
     WWAN-HARDWARE   WWAN      
 running         0.9.4.0    connected       enabled       enabled         
enabled    enabled         disabled

** Affects: network-manager-applet (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug precise

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https://bugs.launchpad.net/bugs/979339

Title:
  very low wifi network rate

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