What mean this error?
see attachment (red sign)
It means the mac address was not found by the router in “/interface wireless access-list”, and you have “default-authentication=yes” set on that radio.
Thanks for this reply but i have not configure a mac access list
That is what it is telling you. It is saying “I received a request from that radio to connect, and you have not entered that mac address in the access list as authentication=no (don’t allow connection), so I will allow it to connect.”
You probably have “default-authentication=yes” in “/interface wireless”.
If you change the “/interface wireless” setting to “default-authentication=no”, then there must be an entry in the access list that allows the connection, or it would be denied.
add: That is not an error. That is a debug message letting you know what it decided about that connection request.