Hello,
I am testing enabling SSO on my Multi-Machine Set up, but am encountering the following error on my hosting server machine (see attached). We have set up Active Directory on IWA

So far I have configured the following:
- Portal set to allow access to portal through HTTPS only
- Do not allow anonymous access to portal
- Portal Admin connected to Active Directory
- IIS on Portal's webadaptor set to:
- Anonymous Authentication = Disabled
- Windows Authentication = Enabled
- wildcard domain added to Trusted Sites in Internet Options
- Internet Options are set to Automatic Login w/ current username and password in Local Intranet/ Trusted Sites/ Internet zone on all machines (
I was following Use Integrated Windows Authentication With Your Portal
I can utilize SSO for Portal Log in & ArcGIS Pro login. Just not Server Manager / Admin both on machine and on local machine.
Any ideas why it is not recognizing my Enterprise Portal here on the Server login page?
When I push it back to Anonymous Authentication: Enabled / Windows Authentication: Disabled, I am greeted with a login that recognizes the Portal.
