Comment 29 for bug 132042

I might have a similar bug.
lenovo R61 Laptop

# uname -a
Linux pumba 2.6.31-17-generic #54-Ubuntu SMP Thu Dec 10 16:20:31 UTC 2009 i686 GNU/Linux

# lspci
03:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02)

# lsmod | grep iw
iwl3945 77372 0
iwlcore 112796 1 iwl3945
mac80211 181140 2 iwl3945,iwlcore
led_class 4096 4 iwl3945,iwlcore,sdhci,thinkpad_acpi
cfg80211 93052 3 iwl3945,iwlcore,mac80211

Symptoms: Using WPA-PSK to adsl wifi AP, all works fine, if i then have a powerfailure and the AP reboot, the laptop/network manager refuses to reconnect. It still sees the AP, but will not reconnect until i reboot.

I have tried to remove the wifi modules, switch the hardware wifi switch on and off, but after reloading modules, it still won't connect, only a reboot fixes.