For the time being you will be able to enjoy playing call of duty like you once did. There is a good chance you may never get a connection interruption again. If you are getting a connection then you are ready to go.

Click on Internet Connection Test (do not bother trying to set up a connection manually, if you do this chances are you will mess something up). Turn your PS on and go directly to your network settings. One you have connected your PS to your modem press the reset button on the modem. The modem plugs directly into your cable line so there is a good chance that the television you play your PS3 on has a cable connection. If your modem is not near your playstation then move it close to the ps3. In order to find out, disconnect your PS from the router and plug it directly into you modem. If u r using a router (no matter the brand), the problem probably has to do with the router. If you r constantly getting connection interruptions during game-play then here is what u need to do.

What do you do when your ps3 freezes