Step 1
From the Xbox Home screen and using a controller, push up on the left thumb-stick to highlight the list of pages, then push right to move to the settings page.
Step 2
When you reach the settings page, use the thumb-stick to highlight the System item and press A to select.
Step 3
In the System Settings menu that appears, use the thumb-stick to highlight the Network Settings item and press A to select.
Step 4
On the Available Networks screen that appears, use the thumb-stick to highlight the network you are using and press A to select it. If you are connected via an Ethernet cable, choose Wired Network, if you are connected using Wi-Fi, choose the Wireless Network option.
Step 5
On the Network Settings menu that appears, press A to choose the Configure Network item.
Step 6
On the Configure Network screen that appears, push right on the left thumb-stick to move the Additional Settings tab.
Step 7
On the Additional Settings tab, use the thumb-stick to highlight the Advanced Settings item and press A to select it.
Step 8
On the Advanced Settings screen, your MAC Address is shown in the bottom left corner.