Connecting to an existing AP thourgh WLAN

Hello guys.

I bought MikroTik hAP mini due of old router which does not supports WPA-EAP2 in our domain network.

Situation:

I got MT hAP and I need connect through WLAN to an existing AP with WPA-EAP2 security on certificate(like a extender - not creating a new AP) and through ethernet port connect KM printer for wireless print.

Thank you.