Failure to tether to D-800. I'm running LR 6.8, Sierra 10.12.2, on Macbook Pro, with new battery in camera, new tether cables from tether tools. No conflicting software installed on computer, no other software running. I've followed all the tips and steps from Adobe's "troubleshoot tethered capture" and how to fix tether problems, multiple times. I've deleted preferences. Ive worked on this for four hours. No results. I'm the kind of user that all of my colleagues and friends usually turn to for help. I'm the helpless one. Why do we pay Adobe so much. And then there is the whole Adobe subscription based crap for a product that does not perform as advertised. It's a good thing I checked out this softwares complete failure to perform a week prior to needing it.