Internet Problems, with Game not IE?

How can I configure "The Realm Online" so it will work through a firewall?
In order to play The Realm Online, you will need to open a number of ports.

The TCP/IP ports to open are:

* 6005
* 6006
* 6012
* 7000
* 7002
* 8000
* 8001

Your system administrator can usually open the ports.
Note that these are the ports currently being used and are subject to change.

http://www.realmserver.com/modules.php?name=Support&op=techFAQ
March 2010