vCloud Automation Center Designer

Hi

I'm using vCAC 6 and I have troubles installing the "vCloud Automation Center Designer".

In the second screen, it ask for Model Manager Web Service Host Name:Port (FQDN) but all combinations I could imagine throws the error "Invalid host name or there is no Model Manager Web service running on specified host.

My vCAC VA host name is: vcac.miempresa.net

My vCAC IAAS host name is: vcaciaas.miempresa.net

Screenshot attached.

Thanks in advance.