Hi everyone,
I first replied to the sticky-thread about all the connection issues, but because there are no answers for me I start a new one for me here.
First of all, I`ve of course read the Network-Guide from the Sticky-Threat!
I can´t connect to any multiplayer-game, cannot host a game, have tried everything I know and need professional aid.
Perhaps the following facts help our friendly supporters to help me 
- My Windowsfirewall is set up properly, Demigod and Impulse app are both trusted
- I have no AVP, no software firewall, no software at all which checks connection-permissions. Deactivating my AntiVir shows no effect.
- I´m using the Speedport W700V, a modem-router combination by the German Telekom. You can forward ports, but cannot make specific NAT-settings. The Portforwarding is bound to my PC via MAC-Adress and should work. (Here is the Manual as .pdf in german language: Klick )
- German Telekom with 16MBit-connection, shouldnt really block p2p-connections at all. Am not in a dorm etc.
- I forwarded the Ports 6073, 6100-6200 (UDP) for my Computer in the Routersettings, also in combination with ImpulseReactorOptions.exe set to 6100-6200 without success.
- The routers firewall is of course activated, has never produced any connection problem with any game. But to erase this still possible solution, i temporarily deactivated the router firewall ... and it made no difference in connectivity ingame.
Comments in English and German are welcome.
Teamspeak available.
ICQ 118588532
Greetz and thx for upcoming helping posts,
Gim2k