While configuring the Access Control list in your www.routerlogin.net device, If the user chooses “Allow all new devices to connect” he doesn’t have to enter the MAC address on the page. Most of the Experts, recommends leaving the radio button selected as it would allow all the new devices to connect. If you select “Block all new devices from connecting” then while adding a device you need to enter the MAC address for an Ethernet connection in the allowed list.