First of all im using a router.

I Made A Simple Two Way(Server & Client) Chat Program Using Winsock..

I use my desktop comp as the server, and my laptop as the client.

but the thing is my desktop computer always host with the ip of 192.168.0.xxx not the real ip(ie:68.39.138.144) given from my isp.

if i take my laptop some where else and use a different internet service provider... how can I connect to my desktop computer's server chat program i made.