This is pertaining to SDL Tridion 2013 SP1. We are not using LDAP, instead Active Directory.

The userids are appearing in the Trustees table as well as correct privileges in the TCM Admin as System Admin.

However we are still getting this error below:

Server Error

401 - Unauthorized: Access is denied due to invalid credentials. You do not have permission to view this directory or page using the credentials that you supplied.

Any thoughts on why this error would be occurring? Windows Authentication is enabled and we are loggin in with same username as what is in userid Trustees table.

Would it better useful to post Windows Logs?