Instructions
Insert the ethernet cable into both the PS3 and the router/modem. A router makes it possible to connect more than one Internet-capable device to the Web, while a modem connects a single Internet-capable device to the Internet.
Scroll to the left on the PS3 home menu. Select "Settings" (Toolbox Icon). From the drop-down menu, scroll down and select "Network Settings."
Select "Internet Connection" from the network settings menu. When prompted, select "Yes" to disconnect your PS3 from the Internet. Select the "Easy" configuration setting. The PS3 will automatically retrieve the information from your NetZero account settings and configure the settings for you.
Select "Yes" to save your settings. When prompted, select "Yes Test my Internet Connection." The window will show a confirmation that you are connected to the Internet.