Unable to connect to S/4HANA Back-end instance, SAP CAL on AWS

Hi Joerg,

I have set up the SAP S/4HANA 1709 FPS01 fully-activated appliance in SAP CAL (trial) on AWS and connected to the S/4HANA instance yesterday. Today after activating the instance from a suspending state, I am unable to connect to the HANA DB with either GUI or remote desktop. I get a "connection refused" error (screenshot attached). I am able to connect to the SAP NetWeaver Administrator and remote desktop.

What do you recommend?

Thanks,

Tony