Upgrade to 10.04 broke wireless.

Sat May 8 15:24:13 UTC 2010

On Saturday, May 08, 2010, Kaj Haulrich wrote:
> Yes. I removed network-manager completely before installing wicd on all 
> laptops (and vice-versa) - all failed with: "Bad password". It's the first 
> time I've ever experienced an upgrade/re-install to break something
> important.  Hence my report.

And did you reboot after purging NM???   If not, then the wpa-supplicant that 
NM created was still running.

ps aux wpa

would show you what is running.