Mac Address Filter On Tplink Deco M4 May 2026

What is a MAC Address Filter? A MAC (Media Access Control) address filter is a security feature that allows you to control which devices can connect to your network. By filtering devices based on their MAC addresses, you can prevent unauthorized devices from accessing your network.

How to Set Up MAC Address Filter on TP-Link Deco M4:

  1. Open the Deco App: First, make sure you have the Deco app installed on your smartphone or tablet. Open the app and log in to your TP-Link account.
  2. Select Your Deco M4 Network: Tap on the Deco M4 network you want to configure.
  3. Go to More Settings: Tap on the "More" icon (three dots) on the top right corner of the screen, then select "More Settings".
  4. Select Advanced Settings: Scroll down and select "Advanced Settings".
  5. Select MAC Filtering: Tap on "MAC Filtering" under the "Security" section.
  6. Enable MAC Filtering: Toggle the switch to enable MAC filtering.
  7. Add Devices to Allow List: Tap on "Add Device" to add devices you want to allow on your network. You can add devices by their MAC address or by scanning the QR code on the device.
  8. Add Devices to Deny List: Tap on "Add Device" under the "Denied Devices" section to add devices you want to block on your network.
  9. Save Changes: Tap on "Save" to save your changes.

How to Find a Device's MAC Address:

  • On a Windows computer: Press the Windows key + R, type cmd, and press Enter. Type ipconfig /all and press Enter. The MAC address is listed as the "Physical Address".
  • On a Mac computer: Go to System Preferences > Network > Advanced > Hardware.
  • On a mobile device: Go to Settings > About Phone > Status > Wi-Fi MAC address.

Tips and Precautions:

  • Make sure to add your own device's MAC address to the allow list to avoid blocking yourself from the network.
  • You can add up to 64 devices to the allow and deny lists.
  • If you forget to add a device to the allow list, it will not be able to connect to your network.

By following these steps, you can set up a MAC address filter on your TP-Link Deco M4 network to control which devices can connect to your network.

The TP-Link Deco M4

handles MAC address filtering through its Blacklist (now often called Wi-Fi Access Control), which allows you to block specific devices from your mesh network. While older firmware for Deco units primarily supported only blacklisting, recent updates to the Deco ecosystem have begun introducing Allow List (Whitelist) modes for various models. How to Set Up MAC Filtering on Deco M4 mac address filter on tplink deco m4

You can configure these settings through either the Deco mobile app or the web management interface. Option 1: Using the Deco App (Recommended)

Open the App: Launch the TP-Link Deco app and go to the Security tab.

Access Control: Tap the Wi-Fi Access Control module. Note that this option is only visible if all Deco units in your network support the feature.

Choose Mode: Tap Mode to select how you want to filter devices:

Block List Mode: Prevents specific devices from connecting. You can select currently connected clients or manually enter a MAC address.

Allow List Mode: Only allows specific devices to connect. This is a stricter security measure, but TP-Link experts note that guests can still use the Guest Network Exception to connect without being on the allow list. Option 2: Using the Web Interface What is a MAC Address Filter

Log In: Open a web browser and go to 192.168.0.1 or tplinkwifi.net. Use your admin credentials to log in.

Navigate to Security: Click the Advanced icon in the top right, then select Security from the left-hand menu and choose Access Control.

Enable and Configure: Toggle Access Control on. Select Whitelist or Blacklist and add devices by name and MAC address. Critical Considerations

Whitelisting Limitations: Community feedback has historically highlighted that whitelisting was missing on many Deco models, forcing users to rely solely on blacklisting. Check for the latest firmware updates (such as version 1.4.1 or higher for similar models) to ensure you have the full "Allow List" functionality.

MAC Spoofing: Users on the TP-Link Community forums warn that MAC filtering is not foolproof. Modern devices like iPhones and Androids use Random MAC addresses to enhance privacy, which can bypass fixed MAC filters unless "Private Wi-Fi Address" is disabled for your home network.

Security Context: While MAC filtering adds a layer of control, security experts from Portnox suggest it should be used alongside strong WPA2/WPA3 encryption rather than as a standalone security measure. How to configure Wi-Fi Access Control on TP-Link Deco Open the Deco App : First, make sure

1. Parental Controls on Steroids

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.

Step-by-Step: How to Set Up MAC Address Filtering (Whitelist Mode) on Deco M4

Because the Deco M4 relies on the TP-Link Deco app (available for iOS and Android), you cannot do this via a web browser. Follow these steps precisely.

Mastering the MAC Address Filter on TP-Link Deco M4: A Complete Guide to Network Access Control

In the era of smart homes and ever-increasing cyber threats, controlling who (or what) connects to your Wi-Fi is more critical than ever. The TP-Link Deco M4, a popular mesh Wi-Fi system known for its affordability and reliability, comes packed with security features. Among the most powerful (and often misunderstood) is the MAC address filter.

If you’ve searched for "MAC address filter on TP-Link Deco M4," you are likely looking to block unwanted guests, restrict your children’s internet hours, or secure your IoT devices. This guide will walk you through everything you need to know—from the basics of what a MAC address is, to step-by-step setup, troubleshooting, and advanced tips.

The Two Faces of the Filter

When you navigate to the Deco app and find the Blacklist/Whitelist settings, you are actually choosing between two very different security philosophies.