Instructions
Connect the adapter to two small slots located above the cable ports on the back of your Xbox 360. Connect the adapter's USB cable to the Xbox. Lift the antenna to the upright position.
Power on your Xbox 360 and open "My Xbox."
Open "System Settings" and continue to "Network Settings."
Select your wireless network.
Enter your Cisco router's security password, if applicable, and select "Yes" when prompted to update your Xbox system.
Test the internet connection. If you are given a message that you are not connected to the internet, check that your router is working properly and that other computers in the home are connected to the internet.