Things You'll Need
Instructions
Connect one end of your Ethernet cable to the Ethernet port on the back of your PS2 Slim.
Connect the other end of the Ethernet cable to one of the "input" ports located on your wireless router.
Turn your wireless router and PS2 on. Your PS2 should now be communicating with your cable modem through the wireless router.
Select the "System Configuration" option in the PS2 main menu, then select the "Network Configuration" option.
Follow the prompts to configure the connection between your PS2 and cable modem. After this, you should be able to play online games and perform other online activities with your PS2 Slim.