A new vcenter appliance is accessible using VMware credentials but we cannot logon using the "use Windows session credentials" option. the option to enable Active Directory is checked and the domain is entered. there is an existing vcenter appliance that does not have any logon issues and the new appliance was compared to that one. We cannot find any differences. If I try to add a permission in VMware I do not see the domain to allow me to add a group domain or user so I'm assuming it is not in synch with the domain. Where should I begin looking for the problem?