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
$ 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=220.127.116.11 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