Mac Address Filter On Tplink Deco M4 ((install)) May 2026

For the TP-Link Deco M4, MAC address filtering is managed through the Access Control feature, which allows you to either "Blacklist" (block) or "Whitelist" (allow) specific devices. Unlike traditional routers that use complex tables, the Deco M4 simplifies this through its web interface or the mobile app. How to Configure MAC Filtering

You can set up these filters by accessing the Deco's web management page or using the mobile app:

Access the Web Interface: Open a browser and enter 192.168.0.1 or tplinkwifi.net.

Log In: Use your admin credentials (default is usually admin for both username and password if not already changed).

Navigate to Security: Click on the Advanced icon in the top right, then select Security from the left-hand menu and click Access Control. Select Your Mode:

Blacklist Mode: Blocks listed devices from accessing your Wi-Fi.

Whitelist Mode: Only allows listed devices to connect; all others are blocked. mac address filter on tplink deco m4

Add Devices: You can manually enter a device's name and MAC Address or select from a list of currently connected devices.

Save Settings: Ensure you click Save at the bottom right to apply the changes. Important Considerations

Random MAC Addresses: Many modern devices (iOS 14+, Android 10+, Windows 10+) use "Private Wi-Fi Addresses" or "Random Hardware Addresses," which can bypass your filters if they change. You may need to disable this on the specific device to ensure the filter stays effective.

Guest Network Exception: 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.

Device Visibility: Some users have reported that "MAC Address Filtering" might not appear if all Deco units in the network do not support the specific firmware version for that feature. MAC Address Filter on TP-LINK Deco M4, How To

Maximizing Home Security: Configuring MAC Address Filtering on Your TP-Link Deco M4 TP-Link Deco M4 Go to product viewer dialog for this item. For the TP-Link Deco M4 , MAC address

is a powerhouse for whole-home mesh Wi-Fi, often praised for its seamless roaming and robust parental controls. However, as smart home devices multiply, keeping your network secure requires more than just a strong password. MAC Address Filtering—often managed through the Block List or Wi-Fi Access Control features—is a vital layer of defense that ensures only authorized devices can use your bandwidth. What is MAC Address Filtering?

Every device with a Wi-Fi chip has a unique physical identifier known as a Media Access Control (MAC) address. While a Wi-Fi password acts like a front door key, MAC filtering acts like a security guard with a guest list.

Blacklisting (Block List): You allow everyone except the specific devices on your list.

Whitelisting (Allow List): You block everyone except the specific devices you've pre-approved. How to Use the Block List on Deco M4 The most common way to manage unwanted devices on the is through the Block List in the TP-Link Deco App.

Method 2: Allow only specific devices (Whitelist) – Workaround using Access Control

If you want only approved devices to connect, you must use Access Control. This requires a TP-Link cloud account.

Part 8: Final Verdict – Is MAC Filtering on the Deco M4 Worth It?

Yes, but with caveats.

The MAC address filter on TP-Link Deco M4 (via Blacklist and Wi-Fi Access Control) is perfect for:

• Parents who want to block specific tablets at night.
• Tech users who want to ban an unknown device that guessed the Wi-Fi password.
• Smart home owners who want to prevent a Chinese smart plug from phoning home (though a firewall is better).

It is not perfect for:

• Stopping a determined hacker (they will spoof a MAC).
• Large offices or high-security environments.

Problem 2: "I can’t find the MAC address in the Deco app."

Solution: The device must have connected at least once to appear in the "Online Devices" list. If it's a new device that has never connected, you cannot filter it until it attempts a connection. As a workaround, enable "Wi-Fi Access Control" (Whitelist) to block everything new by default.

Phase 3: The "Blacklist" Alternative (Temporary Filtering)

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

1. Go to the Deco app > Tap the Clients tab (bottom center).
2. Find the suspicious device in the list.
3. Tap the device name, then tap "Block" .
4. This adds the device to the Blacklist. It is still a MAC filter, but a remedial one.

Important Pre-Check: "Blacklist" vs. "Whitelist"

Before you begin, you must understand a critical limitation of the Deco M4 firmware compared to older traditional routers:

• Old Routers: Usually allowed a "Whitelist" (Only allow these devices) and a "Blacklist" (Block these devices).
• Deco M4: Only supports a "Blacklist."
  • You CAN block specific devices from connecting.
  • You CANNOT set a rule to say "Only allow my phone and block everyone else."
  • If you need to block all devices except a few, you must manually block every other device individually.

Problem 3: "MAC filtering stopped working after a firmware update."

Solution: Firmware updates sometimes reset advanced settings. Go to More > Advanced > Wi-Fi Access Control and verify the toggle is still ON. Also re-check your Blacklist and Allow List. Parents who want to block specific tablets at night