Playstation 3 consoles are only able to get internet access over a wired connection and are unable to connect over a wireless connection. Before trying to register, make sure that you have an ethernet cord connecting your Playstation 3 to the port in your room.
1. Turn on your Playstation 3 without any disk in the drive.
2. Navigate to the "Settings" icon (located on the far left). Press the X button.
3. Select “Network Settings” with the X button.