Hi guys i am busy developing a chat zone but currently it works if users are connected to the same network but how do i make it not run on the same network? and i developed it using c#.

That's what I call a design question. That is, I don't know which design you used but to make it chat across the web you need a server that arbitrates and forwards to the other clients. WIthout that you can't sling a message directly across the web through a router and to that client.

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