ARSweb not working for managed domain

Hi All,

I have recently added a managed domain in an existing AR server. I can manage it from the console but I am unable to authenticate using the managed domain credentials. It does not give any error, just keeps prompting for username/password although I have given it many times. I have confirmed multiple times the account username and password is correct.

Is there any configuration missing, how does IIS forwards the auth request to the managed domain ? I may be missing some configuration

Appreciate your help