This is a terrific FAQ for the vSphere 6 PSC. I suggest you read this and refer to it as you begin to get more familiar with and plan upgrades or deployments of vSphere 6.
VMware KB: Running data collection on a new VMware vRealize Orchestrator endpoint in VMware vRealize Automation fails with the error: Full authentication is required to access this resource
This KB article is just one more indicator that you should use lower case for names and addresses for the components of vRealize Automation. I have spent more time than with customers troubleshooting issues related to mixed case host names, dns records, etc.
Do yourself a favor: standardize on lowercase names!