How to block user

RouterOS Wireless Networking
1

Hello
how do i deny an ap connect to my Mikrotik, and i have the user AP mac address

2

not AP, client. you have the AP, and you want to stop a certain device connecting to it? Use access list in the wireless configuration.

3

yes,
use 'access-list' to allow station will connect to and use 'connect-list' to allow ap will connect to, than turn-off default-authentication=no and disallow communication each other over wirelessly 'default-forwarding=no'

regards