Have your wireless network name, or SSID, and wireless network key available. Both items are available through MyMidco by signing in and clicking on the Wireless Modem Network Key icon
Confirm Xbox is connected to television and TV and Xbox are powered on
Press the Xbox Guide button on the Xbox controller
Press the right arrow button to highlight System Settings
Press the green A button to enter System Settings menu
Arrow down to Network Settings and press the green A button
Use arrow buttons to highlight Configure Network
Press the green A button
Highlight Scan for Networks
Press the green A button
Select Wireless Network will show available wireless networks
Use up or down arrow buttons to highlight the wireless network name (SSID) you would like to join
Press the green A button
Enter the wireless network key, or password
Press the green A button to connect
Once connected, press the Xbox Guide button to return to the home screen