Public bug reported:

Binary package hint: unity

Sony Vaio X upgraded to 11.04 with 2.6.38-8-generic i686 which improved some 
features but which introduced a serious WiFi problem: while unsecured WiFi 
works well, connecting via WPA & WPA Pesonal password fails consistently 
despite reboots of everything and renaming of SSID. Another laptop running 10 
still works fine. One hint: upon upgrading, there was the warning that the 
laptop hardware did not support Unity and I always get the classic Gnome 
display.
Atheros AR9285 Wireless Network Adapter
Qualcom Sony Gobi 2000 Wireless Modem
ifconfig shows no packets with wlan0 or any connectivity.
iwconfig shows correct SSID and other info.
dmsg shows "wlan0: direct probe to f8:7b:7a:2b:a7:d1 timed out"
Restarting the network has no effect but there is a message that 
"Running /etc/init.d/networking restart is dprecated because it may not enable 
again some interaces"
This bug report is done with another laptop running Maverick because the Vaio 
can't connect and I don't dare upgrade the 2nd laptop until this problem is 
resolved.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: unity 0.2.46-0ubuntu5
ProcVersionSignature: Ubuntu 2.6.35-28.50-generic 2.6.35.11
Uname: Linux 2.6.35-28-generic i686
Architecture: i386
Date: Sun Jun  5 10:30:49 2011
InstallationMedia: Ubuntu-Netbook 10.10 "Maverick Meerkat" - Release i386 
(20101007)
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: unity

** Affects: unity (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 maverick ubuntu-une

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https://bugs.launchpad.net/bugs/793205

Title:
  Only unsecured wifi works in 11.04 on sony vaio

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