I've installed GeoEvent 10.3.1. The only login that works with the GeoEvent manager is the ArcGIS Server administrative login ID. I cannot use an Active Directory login. The ArcGIS Server 10.3.1 instance is set up for Windows Active Directory and is working with that no problem. Pass thru authentication works for ArcGIS Server Manager. AGS services are assigned to AD Groups and authentication works as expected.
In GeoEvent Manager/Site/Data Stores the 'Default' item under "Registered ArcGIS Server" displays a red icon.
What am I doing wrong?