: Blocks listed devices from accessing your Wi-Fi.
Ensure your main Wi-Fi network requires a strong, complex password.
If you accidentally block a device, you can remove it from the blacklist: mac address filter on tplink deco m4
To understand MAC address filtering, one must first understand the MAC (Media Access Control) address itself. This is a unique 12-character hexadecimal string hard-coded into every network interface card—be it a smartphone, laptop, or smart bulb. Think of it as a serial number or a fingerprint. When a device tries to connect to the Deco M4, the router checks this fingerprint. With MAC filtering enabled, the Deco M4 compiles two lists: an "Allow List" (whitelist) and a "Deny List" (blacklist). If the "Allow List" is active, only devices whose MAC addresses are explicitly entered can connect; all others are rejected. Conversely, the "Deny List" blocks specific troublemakers while allowing everyone else.
On the main dashboard, tap the icon or the central network map. : Blocks listed devices from accessing your Wi-Fi
However, more recent firmware updates and hidden settings have introduced a feature called "Access Control" within the web interface, which appears to allow for a true whitelist (Allow List). This guide will cover both the basic Blacklist method via the Deco app (which is confirmed to work on all models) and the more advanced Access Control feature found in the web management portal.
Traditional routers usually offer two types of MAC filtering: This is a unique 12-character hexadecimal string hard-coded
You can manage your network's MAC filtering either via the or the Web Management Page . The Deco App is usually the most convenient, but using the web-based access control provides a dedicated Whitelist/Blacklist interface. Method 1: Using the TP-Link Deco App (Quickest)
Periodically check the Deco App to ensure no unauthorized devices are trying to connect. By utilizing the block list feature on your
A (often referred to as Access Control or IP/MAC Binding ) allows your TP-Link Deco M4 to act as a bouncer for your home network. You can configure the router to use one of two main rules:
Note: Make sure your current phone or laptop is added first, or you will accidentally lock yourself out of your network.