When I want to connect to my Mikrotik AP for the first time sometimes it asks for Username and Password if I cancel the connection and double click again it will ask for Security key (as it should). Why does this happen? What Username and password I need to enter?
It asks for user/pass because you have ticked “WPA EAP” and “WPA2 EAP”.
If don’t want to run authentication via a RADIUS server, simply untick those two options and you’re fine.