Things You'll Need
Instructions
Insert the Wireless Networking Adapter installation CD into your Xbox disc drive and restart your Xbox. Follow the onscreen prompts to install the software.
Place your Wireless Networking Adapter in the back side of your Xbox 360 in the provided slots, and click it into place. Then insert the connected USB cord into a free port on your Xbox.
On your Xbox menu, navigate to "My Xbox" > "System Settings" > "Network Settings" > "Configure Network." Then open the "Basic Settings" tab, select "Wireless Mode," and click "Scan for Networks."
Select your wireless network from the list, specify your network security type ("WEP," "WPA/WPA2," or "No Security") and password, and then press "Done."
Test your connection by pressing the "B" button on your Xbox controller and clicking "Test Xbox LIVE Connection." You should now be greeted with this message: "Xbox LIVE is up and running." If you need help in troubleshooting your connection, see Resources.