Once installed, go to YaST, and as root user remove all matters related to NetworkManager:
Afterwards, go to Network Devices> Network Settings, which warns us that the network is currently controlled by NetworkManager and …. Click OK.
With this we are able to connect using Wicd. You must restart the machine.
If for some reason, when asked to restart the root password to run Wicd, it can be solved by opening a terminal as Root and entering the following line:
chkconfig wicd on
It may also be unable to see the icon in the system tray so it would be necessary to have installed the packages for gtk.
original: Wicd en openSUSE 11.1