Step 1 On the keyboard, press the Windows button and R button at the same time. A window named Run will pop out, type cmd in the box and click OK button.
Step 2 In the coming black window, please type in “ipconfig –all” and then press the Enter button on the keyboard. The adapter information will show like below, please look for the Physical Address of your wireless network adapter.
2. Configure the Modem Router
Step 1 Open the web browser and type in http://192.168.1.1 in the address bar and press Enter. The Username and Password are both “admin”.
Step 2 Please go Interface Setup->Wireless page, you will see Wireless MAC Address Filter at the button of this page.
Step 3 In the Action, please choose Allow Association and type in your MAC address in the box. The MAC address should be in the same format as it is showed, numbers with colons.
Step 4 At last, click the SAVE button.