You must register your Apple TV's hardware address before it can connect to the Stanford or Stanford Residences network. Note that an Apple TV device will have TWO hardware addresses, one for the wired connection, and one for the wireless connection. It is advised that you register both addresses even if you only intend to only use one.
1. Select the "Settings" option, then select "General"
2. Select the "Network" option
3. The wireless address will be under "Wifi address"; the wired address will be under "Ethernet address"
Once you've located the hardware address for your device, you can register it following the instructions for Connecting your streaming media player.