vCenter Server 5.5 SSL certificate update

Hi there

We have a Problem with updating our ssl certificate for the vCenter Server with the ssl certificate updater tool 5.5. All Services are installed on a 2008R2 Server. I created all the necessary files (like .pem, .key,.cfg,....) and configured the ssl-Environment.bat. The update of all ssl certificates worked execpt for the vCenter Server where i get the error:

Cannot reload the vCenter Server SSL certificates. The certificate might not be unique

I found a solution for this for vCenter 5.1. But I cant find the descripted files in Version 5.5. Can someone help me?

Thanks