Access the range extender’s web-based setup page. For instructions, click here.
Click Status > WLAN Statistics and look for the Seen by Upstream AP section. These are the MAC addresses that you will add to your router's MAC Filter list.
NOTE: If your range extender's web-based setup page looks different from the image below, make sure to update the device's firmware to the latest version.
You may now configure the Wireless MAC Filter feature of your router. To know how, click on the links below:
Configuring wireless MAC Filter using your Linksys cloud account
Configuring the MAC Filter feature of the Linksys Smart Wi-Fi Router using the local access interface