Are you using Server 2012 R2 or something newer? I ask because I had a similar issue getting this to work using a Server 2019 server. That's until I found that Server 2019 has a bug that prevents NPS from working correctly. See if this might be useful at all in your particular situation:   https://www.risual.com/2019/03/windows-2019-server-nps-bug/ ... View more