Mac Address Filter On Tp-link Deco M4 -
Wi-Fi security isn’t just about strong passwords. While WPA2/WPA3 encryption keeps most intruders out, MAC Address Filtering adds an extra layer of control by allowing you to specify exactly which devices can join your network.
The TP-Link Deco M4 (part of the Deco mesh system) handles MAC filtering differently than traditional routers. Instead of a simple "Allow/Block" list per band, the Deco app uses via Blacklist or Whitelist modes.
Use MAC filtering in addition to a strong Wi-Fi password and WPA3 encryption (if your devices support it). Need more help? Visit the official TP-Link support page for Deco M4 or comment below with your specific use case.