I came across an issue while trying to do Always On VPN. I noticed my DC for the organization is Server 2012 (I have never looked into this, I was told everything was 2012r2 already)
I have verified it is 2012, and now I am at the point I need it 2012r2 at bare standard. I have license for 2016 and 2019 server editions.
Should I run the upgrade or migrate over. Any thoughts