Local Flash P2P Communication

My goal is to create a turn-based, over wifi, Air deployed to iOS and Android game. The first thing I want to figure out is local Flash peer to peer communication. I found this tutorial, but when I run it on two different computers over the same wifi network, it doesn't actually communicate (as a side note, his sample of it running on his server doesn't seem to work properly either). There are no errors and each computer is connected to the Wifi so I'm not sure what the problem is. If there is a better way or better tutorial, I would greatly appreciate the advice.