On my laptop (a thinkpad X40), I have the ipw2100 wireless card. I installed the drivers from ipw2100.sf.net, and everything was fine. Then one day, it just magically stopped working for no apparent reason.
It is detected as a wireless device OK:
stevex40 steve # iwconfig eth1
eth1 unassociated ESSID:"<my wireless access point>" Nickname:"stevex40"
Mode:Managed Channel=0 Access Point: 00:00:00:00:00:00
Bit Rate=0 kb/s Tx-Power:off
Retry:on RTS thr:off Fragment thr:off
Encryption key:XXXX-XXXX-XXXX-XXXX-XXXX-XXXX-XX Security mode:open
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
It can even see my gateway ok:
stevex40 steve # iwlist eth1 scan
eth1 Scan completed :
Cell 01 - Address: 00:09:5B:C1:27:BC
ESSID:"<my wireless access point>"
Bit Rate:36 Mb/s
Extra: Rates (Mb/s): 1 2 5.5 11 6 12 24 36
Extra: RSSI: -32 dBm
Extra: Last beacon: 38ms ago
Cell 02 - Address: 00:0D:54:FA:E8:DD
ESSID:"<neighbours wireless access point>"
Bit Rate:54 Mb/s
Extra: Rates (Mb/s): 1 2 5.5 6 9 11 12 18 24 36 48 54
Extra: RSSI: -83 dBm
Extra: Last beacon: 37ms ago
It just refuses to associate, despite the fact that I am sitting less than 50 centimetres from the wireless access point. As far as I can tell, I am doing everything right, and there is no hardware problem - just a configuration problem.
I really, really must have wireless working. I hate being tied down by cat-5 :(
Edit: Other people are still able to access my wireless access point, and I am definately using the correct key.