Comodo Firewall and WallWatcher Compatibility

Has anyone used WallWatcher (an application to monitor your router/network) and Comodo Firewall at the same time? I originally tried to use Comodo Firewall, but had problems with compatibility with AVG Mail Scanner. I found a solution to that, only to find that my WallWatcher did not work while Comodo Firewall was running. Appreciate any response on this issue. Thanks.