You must register your console's hardware address before it can communicate over the Stanford network. Note that most consoles with wireless capabilities will have TWO hardware addresses, one for the wired connection, and one for the wireless connection.
To Find the MAC Address in Xbox One Console:
- Go to My Xbox in the Xbox Dashboard and select Settings.
- In the Settings pane, select Network.
- Select Advanced Settings from the Network Settings tab.
- At the bottom of this screen you'll see a headings for Wired MAC and wireless MAC.
Referenced from: support.xbox.com