Things You'll Need
Instructions
Insert one end of the Ethernet cable into your PlayStation 3's Ethernet port.
Plug the other end of the cable into your router, which is connected to your modem using another Ethernet cable. If your PS3 is the only device connecting to the Internet, you may be able to plug the cable directly into the modem.
Turn on your PlayStation 3 and navigate to "Settings" from the main menu.
Click "Network settings" and change your connection from wireless to wired.