Had a lot of issues with my 802.11 intel 4965AGN wireless card towards WICD.
All from beeing stuck at obtaining ip, bad password, cant connect to hidden networks.
Seen a lot of similar topics, but with no answear
So I decided to give gnome network manager a chance.
Code:
apt-get install network-manager-gnome
start-network
$nohup nm-applet &
$nohup NetworkManager
(if it shows: Network manager Error - Device is Unmanaged)
nano /etc/NetworkManager/nm-system-settings.conf
Change "managed=false" to "managed=true"
killall nm-system-settings
For autostart nm-applet on X:
cp /etc/xdg/autostart/nm-applet.desktop ~/.kde3/Autostart
This fixed the problem for me