If you have a router you need to forward the ports to your computer ( start>run>cmd>IPCONFIG ) ( Enter default gateway in browser, enter name/pass for router, go to port forwadring, forward ports to internal IP address also found on ipconfig ) different router vary on instructions, but thats basic. Then edit IP in the client code and direct it to your external IP ( if you run on different network ) www.whatismyip.com for external IP.