At first I thought it was that I was using my old mac desktop.  So I tried on my wife's new macbook pro.  Same result. I turned off my phone thinking that since I paired to it first, that may be the issue (and it may still be?) but I still had the same result, no pin dialog box ever comes up and it eventually errors out.  

Yes, H9 can be only connected to one device. Please try connecting to it again when your H9 is available. And take some screenshots so I know which window you are talking about. Please try to connect to your H9 in H9 Control, rather than the Bluetooth window from the System Preferences on your Mac.