Symantec DCS:SA v6.6 and UMC - DCS: server certificate error message

I have imported the UMC CA root cert and my firefox browser is showing up with a green lock. I managed
to get the DCS:SA server registered to the UMC after upgrading the UMC to the correct version.

After logging on to the UMC console, I click on Assets and now I get this message:

System Error: Unable to connect to DCS: Server. Ensure that you have accepted the DCS: Server certificate in the web browser. If the problem persists, contact service administrator.

How do I get this to work? Do I have to connect to the DCS:SA server on a specific port to get the certificate? If so, what is the URL and port number?

I suspect that the port isnt opened on the firewall.

Any help is appreciated in advance.

Thanks