i dont have AOL so it might be that they have some sort of permission system for online gaming...if so, that purely sux for you :((((
to check for DNAS settings, depending on your OS, cuz i am assuming windows xp here, hit start button, go to control panel,right click on network connections and choose explorer, in network connections window, right click on AOL or whatever your listing is under dial-up, from there it has dial-up properties, you will see 5 tabs in the window, choose the networking tab.
find tcp-ip, highlight and click properties, look for the DNS buttons,ie, the ones that say "obtain DNS automatically" or "use the following server address"
if its automatic, click that on your ps2 setup
if its "use the following..." put those numbers in the appropriate slot...
however, since i know you use AOL now, i suspect they are the suspect in the problem with connections...damm them...and i thought Bill Gates was the devil lol
GL...wysp