here the solution : registry key was empty
Could you please check the registry key at HKEY_LOCAL_MACHINE\Software\VMware, Inc.\VMware Infrastructure\SSOServer\FQDNIp, is it showing ip address or FQDN? Please attach a screenshot of registry key and SSO certificate if you can. To find the certificate, you can run http://<FQDN or ip, depend on the registry above>:7444/lookupservice/sdk