I have a user that when trying to access a portal application that should pass through his authentication, it just comes up with a sign on screen. Below are the different scenarios that we have went through and the outcome. Any ideas?
User A on machine A - credentials are not passed through and user sees sign on screen
User A on machine B - credentials are passed through and does not see sign on screen
User C on machine A - credentials are passed through and does not see sign on screen