I'm trying to configure my wifi card in Ubuntu 10.10 server (no GUI, therefore no NetworkManager). I've found a bunch of similar questions here, but none that quite match my problem.
My card is recognised; running "iwconfig wlan0" gives something like this:
wlan0 IEEE 802.11g ESSID:"networkname" Mode:Managed Frequency:2.437 GHz Access Point: Not-Associated Bit Rate:54 Mb/s Tx-Power:20 dBm Sensitivity=-121 dBm RTS thr=2347 B Fragment thr=2346 B Power Management:off
And I can see my wifi network's SSID with "iwlist scan", so the card is definitely working on some level. I've tried following the Ubuntu docs, specifically running:
iwconfig wlan0 mode managed iwconfig wlan0 channel 4 iwconfig wlan0 essid networkname
But this hasn't associated the network with an access point. I've also tried the command "iwconfig wlan0 key s:mypassphrase", but this is is rejected with "Invalid argument" -- do I need to enter the hex form of the key rather than the passphrase? Or am I missing something else entirely?