Hi Guys!

I have been a very weird problem and canīt find any logical answer.
I create a server, my friends CAN SEE and join the server, without any problem.

The problem is: When my friend John are racing on server, my other friend Mark, CANīT join at server. taking a "Not connect" message (Not Join Timed Out). As a same with Mark are on server (John canīt join).

All ports on my router are opened, my server on DMZ.

And the problem, is only between this users (10 other playing without issues).

Anyone know about?