Modern smartphones (iPhone and Android 10+) use Private MAC Addresses or Randomized MACs . Every time they reconnect, they generate a fake MAC address.
Before we talk about filters, we need to talk about identity. Every device with a network card—your iPhone, your PlayStation, your neighbor’s laptop—has a unique, hard-coded fingerprint called a . mac address filter on tplink deco m4
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." Modern smartphones (iPhone and Android 10+) use Private