Wireless does not connect after suspend on ThinkPad T61 [closed]

Question

I have a problem similar to reported here:

When I resume my computer from suspend it doesn't want to connect to any wireless connection. It looks like it is connecting, but after a while it asks me to retype a password for wireless connection. It connects after I restart it"

In my case it happens on Ubuntu 11.04 ThinkPad T61 with Intel PRO/Wireless 4965 AG.

Is there a way to fix the issue by some "magic" sequence of commands without rebooting?

BTW, the sequence of

sudo service network-manager stop
sudo rmmod iwlagn
sudo modprobe iwlagn
sudo service network-manager start

from here did not help

System details:

$ sudo lshw -class network
   description: Wireless interface
   product: PRO/Wireless 4965 AG or AGN [Kedron] Network Connection
   vendor: Intel Corporation
   physical id: 0
   bus info: pci@0000:03:00.0
   logical name: wlan0
   version: 61
   serial: 00:1d:e0:20:a3:47
   width: 64 bits
   clock: 33MHz
   capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
   configuration: broadcast=yes driver=iwlagn driverversion=2.6.38-10-generic firmware=228.61.2.24 latency=0 link=no multicast=yes wireless=IEEE 802.11abgn
   resources: irq:49 memory:df3fe000-df3fffff


$ iwconfig wlan0
wlan0     IEEE 802.11abgn  ESSID:"MyNet"  
          Mode:Managed  Frequency:2.442 GHz  Access Point: Not-Associated   
          Tx-Power=15 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off

Answer 1

You may want to give this a try:

1. Find your wireless kernel module with lspci -v. It appears that yours may be iwlagn
2. Create/edit a file /etc/pm/config.d/00sleep_module and enter SUSPEND_MODULES=iwlagn

References:

http://ubuntuforums.org/showpost.php?p=6186232&postcount=3 http://ubuntuforums.org/showpost.php?p=6883391&postcount=16

Answer 2

Could pm-powersave be the cause of your problem? My answer to How to connect wirelessly in a cafe with 11.04 might apply: