The host is licensed with VMware vSphere 5 Standard. The license edition of vCenter Server does not support VMware vSphere 5 Standard.

So I disconnected a host from vcenter server and I am now receiving this error message when I try to reconnect this host.  The host was previously connected with no issues.  Both vcenter and esxi servers are 5.5.0.  Has anyone had any experience with this?

Thanks.