HOWTO: Replace NM with WICD
From Sabayon Wiki
Replace NetworkManager with Wicd
First step is to install Wicd:
# equo install wicd
Update any config files:
# equo conf update
Now we need to make Wicd start automatically at boot:
# rc-update add wicd default
Now let's stop NetworkManager from being started automatically at boot:
# rc-update del NetworkManager default
Now when you reboot, NetworkManager is gone and Wicd will be the default network manager. Configure it to your liking with the Wicd Network Manager found in your menu.