ISP preventing online gaming?

[subvolva]

Is it possible for an ISP to do this? I've read that its possible for an ISP to interfere with World of Warcraft when blocking certain ports used by p2p programs. The problems I'm having concern several games. I'm unable to play World of Warcraft, City of Heroes, and I can play Eve Online for a few minutes at a time before disconnecting. Tjhe odd thing is that I can play Dark Age of Camelot with no problems. I'm waiting to hear back from CMA Cablevision regarding this but for the time being its really frustrating.

 

[blue68f100]

Run ShieldUP from GRC.com It will let you know what ports are open.

 

[subvolva]

Says all ports are stealthed.