Do you have your Ps3 connected through a router? i not very familiar with PS3 setting but the same thing happens on xbox live if NAT (network address translation) setting are set to strict or moderate....i have a link that might help you solve your problem its from PS3 network setup.....»manuals.playstation.net/document···ork.html
reply to SoloDoloo Its not your internet connection. Infinity Ward has been having issues with the PS3 version of the game. I've only been able to connect to multiplayer once since buying the game on Wednesday. They're suppose to release a patch to fix this soon.
BuckarooB Beware Lectroids from PlanetX Premium join:2001-10-27 Cloverdale, VA
reply to SoloDoloo I've not had any issues with the online play except for the first night of play... its been pretty stable for me. -- "Remember, no matter where you go, there you are!!"