First thank you for your answers.
My problem is still a problem
1) The game works properly while playing directly in LAN without GameRanger
2) I applied the DMZ but nothing changed.
3) I also wait for 5 minutes..
4) The IP is a real public one 80.x.x.x
5) The Firewal has full permissions for GameRanger and aomx
6) I didn't try the antivirus but as far as it works on LAN... there is no reason to block the rest
7) I've checked the version AOMX 1.03
I didn't try reinstalling all the stuff, that will be my weekend try..
9) there was another suggestion "3. Go to: network connections -> local area connection -> internet protocol -> use fallowing ip -> insert the copied ip manually"
I have a router and 2 PCs and am using DHCP to affect local IP. That's why DMZ, UDP 16000, etc..
Anyway I will try it in weekend in order to figure out which part is to blame.
I thank you in advance for any other idea or experiences