Things You'll Need
Instructions
Connect one end of an Ethernet cable to your modem; connect the other end to the router. Connect one end of an Ethernet cable to the back port of your Xbox and the other end to the router.
Turn the console on. Go to the "System" folder after the machine boots up. Select "Network Settings" and then "Text Xbox Live Connection" to make sure your setup works.
Select "Yes, Update Now" when your connection is accepted. Wait for the system to be updated before playing online.