Port 4321 help

[Gonzo_PL]

Hello everyone! I have a problem in TE2013. When I am trying to host a match, when it testing my connection, it says, that others might have problems with connecting to me, becouse of blocked port UDP 4321. The thing is, that I can play online matches(tried already) with not bad ping (about 80, once i had 30). Do I have to do something(unblock port or smth) to gain a better connection, or this is just a bug in game, that I see it?

[inseedious]

You have to forward the tcp/udp 4321 port in order to host matches. You can still join and succesfully play online matches with that port blocked, but you will be unable to host.

[eloymm]

You can use DMZ if your router has that option. it is to open any port. You just have to put your computer IP On DMZ section on your router webserver.