I just changed my 2009 17" macbook pro which I used to hook up to my 32" 1080p external monitor via a Thunderbolt 2 to HDMI 2 adapter with no problems at all. I bought the new 2016 15" retina MBP with the Apple original USB-C (thunderbolt 3) to thunderbolt 2 adapter but the new MBP doesnt connect to the 3 different brand monitors. HELP!!