An existing connection was forcibly closed by the remote host

[ibaanb]

Why I got this message when I'm connect to other player "An existing connection was forcibly closed by the remote host" I've use udplobby server?
please help me.

Thank you IBaa.

[ArenMook]

Happens when the connection gets aborted. Most common cause -- you are not connecting to a port that's being listened by TNet. You will get this error if you try to connect to www.google.com:80 for example.

[ibaanb]

So it can be because Port that host use is already used by other program?
I can join other but other can't join if I'm host.

[ArenMook]

Most common cause -- you are behind a router that doesn't support UPnP, so TNet can't unlock the port for you. So when the other client connects, he actually ends up connecting to the router instead of to your computer.

[ibaanb]

Did you have any work around to fix this?

[ArenMook]

How can I fix it? It's an issue on your end -- with your router.