I am trying to set up HA but am having some difficulties.
I have created a cluster, Cluster1, but when I try to add a host I am unable. If I try to add by the name of the host as shown in the DNS portion of ESXi vCenter says "cannot contact host". The computer is named HP3 and I've tried that as well as hp3.mycompany.lan as shown in the DNS portion. If I try adding by IP (10.0.1.99) it says that name already exists as that is what the host is called in vCenter.
What can I do to add my hosts to a cluster?