Things You'll Need
Instructions
Insert an Ethernet cable from your networking router into the back of your Xbox 360 console. If your Xbox 360 console has a wireless adapter you can skip this step.
Turn on your Xbox 360 and go to the "My Xbox" menu.
Choose "System Settings" from the My Xbox menu and click on "Network Settings."
Follow the prompts to connect to your wireless network (if applicable), then choose "Test Xbox LIVE Connection."
Click "Yes" when prompted to install the firmware and/or software modifications to your Xbox 360.