I'm from Belgium, and I'm going to switch from internetprovider and whem I'm away from home, I would like to watch tv via my slingbox pro hd. But when I connect to someone's unsecured modem (provider is Belgacom and it cooperates with fon) then can I watch tv. But when I connect on the same modem but via fon, I cannot watch tv. It just doesnt connect. Does fon block the 5001 port? Or is it something else?