Hi all,
I'm trying to create a single sign on experience for my Portal 10.7.1 users using web tier authentification.
I've updated the Portal Security Configuration with the required AD parameters in json format as per the documentation.
I can successfully test the identity store and the connection is returned as successful.

I've create an active directory user in the Portal and tested logging in using the AD account before enabling window authentification.
I then go to the iis server manager and select the portal webadaptor 'arcgis' and Disable Anonymous Authentification and Enable Window Authentification.

I believe I should now be logged in automatically into the Portal and that IIS should handling the authentification?
However when I go to the portal URL i'm challenged for credentials and it appears that Portal requires a token to login?This isn't what I was expecting.

Any help would be appreciated.
Thanks,
Clinton