Why does Comodo block my lan connection and how do i set it to allow my mapped d rives and lan chat to function? Answer found it!! ok, for anyone who needs the answer.. "you configure CFP by a two-step process. Go to Security/Tasks/Add a Zone; give it a name and define the IP range (or go with the default, which is the entire s ubnet). Then go to Security/Tasks/Define a New Trusted Network; use the Zone you just created. This will put two rules at the top of Network Monitor; the first will Allow IP Out from Any to Zone, and the 2nd will Allow IP In from Zone to An y - this allows unencumbered communication across your LAN."