peer-to-peer outside network

Hello I've been tearing my hair out on this all day...

Looking at this example - http://www.adobe.com/devnet/adobe-media-server/articles/p2p_apps_cirrus_lccs.html based on the same functions, I've created a little video conferencing app, which works great on computers in the same building. However when I start testing it remotely I can't get the 'InStream' to display. I'm passing the correct farID to the Netstream class..Is there something I'm missing? I'm not getting any errors