i have a mac mini with thunderbolt 3, i am using a thunderbolt 3 to thunderbolt 2 adapter from apple and apples short thunderbolt 2 wire. the power button blinks red all the time and will not connect.when i press the arrows on the front of the interface when i get to "3" the power button blinks blue three times and goes back to red. its really frustrating and would really like to get it to establish a connection. any help appreciated.