After upgrading to VCenter to 6.0, the following error occurs when attempting to add the VCenter server under hosting in studio:

DesktopStudio_ErrorId : HypervisorNotContactable Exception : Citrix.ManagedMachineAPI.HostingInfrastructureCommunicationsFailureException: Url invalid ---> System.Net.WebException: The remote server returned an error: (403) Forbidden. at System.Net.HttpWebRequest.GetRequestStream(TransportContext& context) at System.Net.HttpWebRequest.GetRequestStream() at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters) at VimApi.VimService.RetrieveServiceContent(ManagedObjectReference _this) at Citrix.PoolManagement.VMManager.VmmImplementation.Vmware.VmwareVmConnection.SingleConnectionAttempt()

Adding a new ssl certificate that had the cname and the aname as a subject alternative name resolves this issue.

Problem Cause

SSL certificate installed on the vcenter server.