How to find out who is listening to your WIFI?

Question

WiFi

Hello.
Does anyone know how to check who is ddosing your WIFI?
Either I'm paranoid, or some kind of mother's schoolboy is really pestering me, because for others it doesn't turn off, but for me it crashes.
What is the way to check?

Answer 1

connect from a different mac address
connect to a neighbor

Answer 2

Change name and hide ssid
Make access only for registered ip

Answer 3

The first thing I would advise is to change the channel on which the router works, so that DDoS stops. There is a suspicion that this is just an attempt to steal a handshake. Turn on the logging system on the router, this is most likely possible to do in the settings. And look at the exhaust