3651583 - Connection Reset while adding subaccount to SAP Cloud Connector

While adding a new subaccount to SAP Cloud Connector(SCC), from SCC trace (ljs_trace.log / scc_core.trc) you perceive following connection reset error.

====
Caused by: com.sap.scc.servlets.FatalSccException: Preparation of tunnel certificate for <subaccount ID>@<region>.hana.ondemand.com account failed.
    at com.sap.scc.ui.SubaccountControl.connectSubaccountToCloud(SubaccountControl.java:272)
    at com.sap.scc.ui.SubaccountControl.createSubaccount(SubaccountControl.java:144)
    ... 40 common frames omitted
Caused by: java.net.SocketException: Connection reset
    at java.net.SocketInputStream.read(SocketInputStream.java:210)
====

• SAP Cloud Connector release independent;
• Customer's network;
• SAP Business Technology Platform (BTP).

SAP cloud connector, CC, cloud connector, connector, SAP CC, JVM, subaccount, sub-account, sub account, tenant, tenant ID, account ID, tunnel, preparation of, hana.ondemand.com, connection reset, com.sap.scc.servlets.FatalSccException, java.net.SocketException , KBA , BC-MID-SCC , SAP Cloud Connector On-Demand/On-Premise Connectivity , Problem