Well me and my brother play online games and one of us plays worst than the other, so I setup DMZ for him and I just use port forwarding (on the same router). Heres the issue whenever he creates a room to play I can't access it because of some sort of port error, but when I make a room he can access it. Then, I swithced DMZ to my network setup and port forwarding for him and when I make the room he can't access it, It's a problem with DMZ or something. I took off DMZ and used port forwarding for both of us and evreything works fine, but I would like to use DMZ for one of us without this problem. Can someone help me with this problem?