Issue/Introduction:
Why do I get an authentication prompt for a user that is not in the domain when authenticating via the ProxySG appliance with IWA?
Cause:
If you are using a computer that is not a member of the domain that the BCAAA agent is installed in or that the ProxySG appliance is a member of, the user is provided an authentication prompt because the user's cached OS credentials are not be valid with the domain.
Resolution:
Add the computer to the domain or enter valid domain credentials.