The MAC Address can be found on a label on the bottom of the Router. You can alternately find it by doing the following:
1) Open your web browser and type the IP address of the TW100-BRV204/304 in the address bar. The default IP address is 192.168.0.1. At the login, enter your username (blank) and password (blank).
2) Click on LAN at the top of the page.
3) The MAC Address is listed next to the MAC Address field.