Instructions
Navigate to "Settings" in the PS3 menu. Scroll to "Network Settings." Press the "X" button to enter the settings options.
Scroll to "Internet connection settings" and press the "X" button on your controller. Select "Easy" as the setup method.
Highlight "Wireless" as the connection method and press the "X" button to select it. Click on "Scan." A list of wireless access points within the range of your PS3 will be displayed. The name is displayed under the "SSID" (Service Set Identifier) tag. The SSID is the name given to a wireless network.
Click on the security settings that the network uses. Type in the password for the network when prompted. Save your settings. Click on "Test your settings" to confirm that a live connection exists. Information on the network will be displayed.