Can't join my friend after we played one game successfully

[KOKOtm]

Hi there,

we have a very annoying problem. I often play with a friend. He opens the game 2on2, i can join, we start the game and played the game successfully. After that, he opens a new game, but i can't connect. If he or me drops the DSL-connection, i can connect again. What is the problem here? Firewalls can't it be, none installed.

Thanks for some help,

Tim

[KOKOtm]

Still have the problem with 1.20 patch :-7

[Moe]

Can you post a warnings.log after a failed connection attempt and one after a successful attempt please?
Are you guys behind routers?