I have completed an ADFS migration from a WIndow server 2008 ENterprise R2 to WIndows SErver 2012 STandard. I performed an in place upgrade, restore and configure the ADFS services.
I have followed Microsoft preparation and migration instructions but it is obvious that I am missing something.
AFter migration, my users were being prompted constantly for credentials on their Outlook client. Also when trying to log into the Office 365 portal, they are unable to authenticate to it, they are instantly redirected to an access denied error as soon as they type their email address. The error is: "403 Forbidden- Access Denied. You do not have permission to view this directory or page with the credentials you provided."
It will be good to mention that before migration, when trying to log into the portal, our users were prompted by our adfs for credentials, but now it redirect us straight to the Access Denied error describe.
Any help on this will be greatly appreciated!