Well, some additional info :
I've tried VMware KB: Cannot connect to vCloud Director HTML5 console with Mac OS X using Mozilla Firefox or Google Chrome ( which also applies on Windows ) -> https://developer.chrome.com/devtools/docs/console
Your connection is not private
Attackers might be trying to steal your information from xxx.xxx.xxx.xxx (for example, passwords, messages, or credit cards).
So in the end is related to Certificate , have to see if there is a DNS issue or what . If you have any ideas, feel free to share.
And ... fixed it . Went in System -> Administration -> Public Addresses and set the fqdn to VCD public Console .
There are some key points here that are the common "gotchas"
1. If there is no public address for Console Proxy, the cell will take the locally configured IP address for Console Proxy and send this to the client.
2. The console proxy is stateless, in that a client going through a load balancer might not hit the cell you got the session information from. Therefore, ensure all certificates are the exact same on each cell for the Console Proxy.
3. Follow the KB mentioned if you are using Chrome, to make an exception for the certificate if it is not signed by a Certificate Authority
florindespa - do you mind taking a minute to mark any response here as correct? that'll help people searching the forums to know there was a solution found in the thread.