JCo error: "EndOfStream reached when trying to read SCC header"

Hi all,

I’m facing a very strange issue when consuming an on premise RFC from my HCP java web app.

In particular, I get this error only with a Cloud Connector located in HEC (other on premise locations for CC work fine).

Connectivity to the backend is definitely available, there are no firewalls in the middle, that’s already cleared with IT

The error message is:

Caused by com.sap.conn.jco.JCoException: read: EndOfStream reached when trying to read SCC header
 Caused by com.sap.conn.rfc.exceptions.RfcException: read: EndOfStream reached when trying to read SCC header
 Caused by com.sap.conn.rfc.exceptions.RfcGetException: read: EndOfStream reached when trying to read SCC header
 Caused by com.sap.conn.rfc.exceptions.RfcIoException: read: EndOfStream reached when trying to read SCC header

I don’t have the full stacktrace yet as the error message is generate by some legacy code. I think this error is related to Cloud Connector connectivity because SCC should stand for SAP Cloud Connector.

I didn’t find this error anywhere in forums/notes, can anyone please share some insight?

Thanks, regards

Vincenzo