I have a new 24R with the latest March firmware update and a 2013 MacBook Pro with 10.12. The first time I hooked the AVB with my ethernet thunderbolt adapter it worked perfect. I shut it down and restarted the system the next day but couldn’t get the AVB to connect. I did some googling and someone suggested starting the computer first and then connecting the 24R. I tried that and it worked. Today, I started it again but no connection, regardless of the steps I took to fix it. I need the 24R to reliably and consistently connect to my Macbook Pro via AVB for recording and playback.