vCenter 6.7 fresh vCenter Server Appliance install with an embedded Platform Services Controller on a 6.5 ESXi host.

Stage 1: Deploy appliance – Completed successfully

Stage 2: Configure appliance – Completed sucessfully

When I try to log in as root on the VMware Appliance Management web:5480 page using the IP address of the server, I receive the error. Unable to login, NOT the error Unable to authenticate user. I can successfully log in using the console with root credentials. Used a variety of browsers and validated security settings. Any ideas?