Since the UMP 9.0.2 Hotfix 1 and UMP 9.0.2 Hotfix 2 were applied on the CA UIM environment, the Admin Console cannot be launched from the UMP Portal.
But it can be launched from the Primary Hub URL.
<IP address> refused to connect
where the IP address is from the Primary Hub
CA UIM 9.02
Admin Console Portlet Fails to Appear on UMP
The Admin Console portlet fails to display on the UMP when the 'X-Frame-Options' is set to 'deny'.