Originally Posted by
turbine help
Normally, you don't need port forwarding because the client always sends to the server before the server tries to respond. In most NAT firewalls, this implicitly triggers a port forward from that server to your client.
* Port 80 - TCP
* Ports 9000-9010UDP - Server Port
* Ports 2900-2910UDP - Server Port
* These ports need to be opened out-bound
When configuring port forwarding explicitly, you need to specify the CLIENT's port. By default, the client lets the operating system choose its port. If you edit your UserPreferences.ini (My Documents\Dungeons and Dragons Online\UserPreferences.ini), you'll see a section titled [Net].
There's an entry there for UserSpecifiedPort, which defaults to 0. Set that value to something else (like 9000), and then forward that port to your computer (either by port forwarding or by a trigger).