Can't set essid or anything else with iwconfig!

[scarypajamas]

I have a Linksys AE1000 wireless adapter. I managed to install the drivers and connect it to an unsecured network called "linksys" which I can access the internet with. However, I now want to connect to a secured network but it won't let me!

For example, I've tried doing the following:

sudo iwconfig ra0 essid "MyNetwork"
sudo iwconfig ra0 key s:mykey
sudo iwconfig ra0 enc on

But, now when I do "iwconfig ra0" this is what I get:

ra0       Ralink STA  ESSID:"linksys"  Nickname:"RT3572STA"
          Mode:Managed  Frequency=2.437 GHz  Access Point: 00:18:39:B4:EA:AF   
          Bit Rate=1 Mb/s   
          RTS thr:off   Fragment thr:off
          Link Quality=46/100  Signal level:-89 dBm  Noise level:-89 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

For some reason, it seems to be ignoring my commands. It should say, ESSID:"MyNetwork" on the top line.

Anyone have any thoughts on this?

EDIT: I forget to mention I'm running Ubuntu Server 10.04 LTS.

[reed9]

This should list available networks

sudo iwlist ra0 scan

Does it show yours?