Instructions
Power on the PS3 and TV.
Select "Settings" in the PlayStation 3 home screen. Press the "X" button on the PS3 remote.
Choose "Network Settings." Press the "X" button.
Select "Yes" when notified that any current Internet connection will be terminated. Press "X."
Choose "Easy" as the configuration option. Press the right navigation button.
Select "Wireless" and press "X."
Choose "Scan" and confirm it with the "X" button.
Select which network, or access point, you want to connect to if multiple options are available. Press the "X" button.
Choose the necessary security settings. This is optional. Press the right navigation button.
Enter the network key, if necessary. Press the right navigation button.
Press the "X" button to save settings. Select to test the Internet connection when prompted. Press "X" again. After the connection test is completed, the PS3 will be connected to the Internet wirelessly.