Things You'll Need
Instructions
Power off your Xbox 360.
Connect the Xbox 360 Wireless Network Adapter into the I/O ports on the back of your console. Connect the adapter's USB cable into the console's USB port. Flip the adapter's antenna up.
Turn on both the Xbox 360 and the TV set. Your console will automatically connect wirelessly to the TV as long as your network doesn't require a password.
Use your Xbox 360 remote to select "System" on your Home screen, if your network requires a password. Choose "Network Settings," and then select "Edit Settings." Choose "Basic Settings" and select all settings that apply to your Internet setup. Press the "A" button on your controller to confirm your basic settings.
Select the network that you want to connect to wirelessly with the "A" button on your controller. Type in the password for your network on the "WEP Network" page.
Select "Done." Then select "Test Your Xbox Live." Your Xbox 360 should be connecting to your network wirelessly now.