Mac Address Filter On Tplink Deco M4 Page

If you don't want strict Whitelist security but just want to kick out a neighbor or an unknown device:

The Deco M4 has excellent built-in parental controls, but they rely on accurate time clocks. If you want to ensure your child's tablet cannot connect at all during study hours, blocking it via blacklist is instant. Better yet, put the child's devices on a Whitelist with a schedule via "Pause" functions. mac address filter on tplink deco m4

Solution: MAC filtering is not instant. The Deco M4 has to wait for the device’s current connection lease to expire (usually 1-2 minutes). Also, ensure the device isn't using a Randomized/Private MAC Address (common on iPhones and Android 10+). Turn off "Private Address" for your home Wi-Fi on the client device. If you don't want strict Whitelist security but

Here is where things get tricky for Deco M4 owners. The very feature that secures your network can break your smart home. Solution: MAC filtering is not instant

Devices like Wi-Fi light bulbs, smart plugs, and robotic vacuums often use randomized MAC addresses (a privacy feature introduced in iOS 14 and Android 10). These devices change their "fingerprint" every time they reconnect to the network.

If you enable a strict MAC whitelist on your Deco M4, you will wake up to find your smart bulbs "unresponsive." Why? Because they changed their MAC address overnight, and the Deco M4 no longer recognizes them.

The solution: On your smartphone’s Wi-Fi settings for the Deco network, turn off Private Wi-Fi Address. For IoT devices, you often have to add them to the whitelist after they have already connected successfully for the first time.