Things You'll Need
Instructions
Turn off the Xbox 360. Connect one end of the Ethernet cable into the "Ethernet" port on the back of the Xbox. Connect the other end of the Ethernet cable into the "Ethernet/Internet" port on your broadband modem.
Turn on the Xbox 360. Scroll to the "My Xbox" tab. Select "System Settings."
Select "Network Settings." Select "Test Xbox Live Connection." Because you are using a direct connection, you do not need to configure any settings.
Select "Yes" if prompted to update the Xbox. The Xbox will test the Internet connection. After the test is complete, you can sign up for Xbox Live or log in to your Xbox Live account if you already have one.