Mac Address Filter On Tplink Deco M4 Online

TP-Link Deco M4 manages device access through the Block List

To Unblock: Go to the main screen > Tap the hamburger menu (top left) > Blacklist > Find the device > Tap "Unblock".

1. Open the Deco App and tap on the More tab at the bottom.
2. Tap on Advanced > Blacklist (or Whitelist, depending on your goal).
3. To Blacklist: Tap the red Blacklist button. You’ll see a list of all currently connected devices. Simply tap the device (e.g., "Unknown-Device-Phone") and confirm. That device is now frozen out.
4. To Whitelist: Tap Whitelist, then the Add button. You must manually select each trusted device from your client list. Warning: Do not enable the Whitelist until you have added your own phone, otherwise you will lock yourself out of the admin app.

Problem 2: "The blocked device keeps coming back."

Solution: Modern smartphones (iPhone and Android 10+) use Private MAC Addresses or Randomized MACs. Every time they reconnect, they generate a fake MAC address. mac address filter on tplink deco m4

Understanding MAC Address Filtering

Choose Mode: Tap Mode to select your preferred filtering type: TP-Link Deco M4 manages device access through the

Note on Security: While MAC filtering adds a layer of control, it is not a foolproof security measure because MAC addresses can be "spoofed" (faked) by technical users. Always use a strong Wi-Fi password alongside these filters. MAC Address Filter on TP-LINK Deco M4, How To

1. The Whitelist (Allow List): The Hermit’s Approach

This is the nuclear option. When you enable "Whitelist," only the devices you manually add can connect. Everyone else—even if they have the correct Wi-Fi password—gets an automatic "Access Denied." Open the Deco App and tap on the More tab at the bottom

Parental Controls: While Deco has dedicated Parental Control profiles, blocking a MAC address is a "nuclear option" to completely cut off a specific gaming console or tablet.