Router Help with PSU Demo

[Eric7990]

Ok so when I try to get on the servers for Phantasy Star Universe with my router I get an error saying that I can't connect or whatever. But when I just use my modem I connect with no problem and no lag at all. I need the router though because I got 2 other computers connected to it.
Do I need to open any ports or is there anybody that has this problem and knows what to do to fix this.
Thanks.

[Eric7990]

Bump...
Would be nice if someone could help me with this :)

[Max B]

1. From the Xbox Dashboard, select the System Blade.
2. Select Network Settings
3. Select Edit Settings
4. Select DNS Settings
5. Select Manual Settings
6. Input 4.2.2.1 for the primary DNS number and 4.2.2.2 as the secondary DNS number.
7. Test the connection to see if your connection still works.
8. Play the game and see if it will log you in.