I am in the process of setting up a new SDP Enterprise environment. I have set up the computer account and enabled AD passthrough, however whenever a user browses to the web address of the SDP server, they are prompted for Windows/domain credentials. Is there something I am missing with regard to setting up SSO, such that a user does not have to enter any logon details, or is this expected behaviour?

I am upgrading from an older version of SDP, so not sure if this is expected or there is something I am missing. I can't see anything obvious in the logs, but I admit I have only skimmed over them.

Thanks in advance.