Unable to play any midi instrument I own

So I just got pro tools 12, and I've spent 3 days trying to find out how to put my keyboard controllers to work on pt12, I did everything i read on gearslutz, youtube, etc but nothing......My controllers are m-audio axiom 61 and Arturia minilab, those work fine with logic in different computers, but not in pt 12.

I asigned the controllers on peripherals, did the mixer thing, midi thru thing,used different usb ports, etc etc but nothing, please HELP:confused:

My system: mac pro late 2013, uad apollo,