ADFS 3.0 hang on ADDS

from http://www.vaken.nl/2015/07/ad-fs-windows-2012-r2-adfssrv-hangs-in-starting-mode/
.. The workaround that I found to be consistent is changing the trigger configuration so that it relies on a different trigger. The command to use is sc triggerinfo kdssvc start/networkon which starts the service when the network is on (typically very early in the boot cycle).

I also tested removing the trigger completely but that wasnt effective at all.

If you have AD FS installed on the DC running 2012 R2 and use a gmsa for the service account, set the kdssvc to auto (instead of manual trigger) and restart the DC. Youll find this fixes this issue. You should no longer have a recurrence.