While many users look for a traditional "MAC Filter" or "Whitelisting" menu, the Deco system approaches security through a feature called . Here is everything you need to know about managing device access on your Deco M4. What is MAC Address Filtering?
: If you use an Allow List , you can enable the Guest Network Exception so visitors can still use your Guest Wi-Fi without needing manual approval. MAC address filtering in Deco - Home Network Community
Choose to manually enter the unique identifier for a device that isn't connected yet. Method 2: Using the Web Interface
: If you use "Allow List" (Whitelist) mode, guests can still connect to your Guest Network without being affected by the whitelist if the exception is enabled. mac address filter on tplink deco m4
Follow these steps to configure access control via the Deco app: Open the Deco App
If you have friends over, they will not be able to connect to your Wi-Fi until you manually add their devices to your Whitelist.
The Deco M4 uses these "VINs" to decide who gets in. Unlike a password, which can be shared or hacked, a MAC address is a physical constant. Filtering by MAC address is like telling the bouncer: "No matter what name they give you, don’t let in anyone whose DNA isn't on this list." While many users look for a traditional "MAC
to Security > Wi-Fi Access Control within the Deco App.
Configuring this feature on the Deco M4 is a study in modern minimalist design—for better or worse. Using the TP-Link Deco app (the sole management interface, as the system lacks a traditional web portal), a user navigates to the advanced settings of a specific network. The process is straightforward: find the connected device, copy its MAC address, and paste it into the filter. This simplicity is a double-edged sword. On one hand, it democratizes security, allowing non-technical users to block a neighbor’s access or prevent a child’s tablet from connecting after hours. On the other, the app’s lack of advanced options—such as scheduling filter activation or importing a list of addresses—feels restrictive compared to traditional router firmware.
Modern smartphones (iOS and Android) use a privacy feature called "Private/Randomized MAC Addresses". This makes devices change their MAC address periodically, which can disrupt your filtering setup if not addressed. How to Set Up MAC Filtering on the TP-Link Deco M4 : If you use an Allow List ,
On the TP-Link Deco app, the focus is primarily on Blacklisting . This prevents unauthorized neighbors or "bandwidth hogs" from using your internet, even if they have your Wi-Fi password. How to Block Devices on Deco M4 (Step-by-Step)
The TP-Link Deco M4 uses a . Every device can connect by default if it has the Wi-Fi password, but you can selectively ban individual hardware addresses. The Challenge of Modern Randomized MAC Addresses