https://userapps.support.sap.com/sap/support/knowledge/en/2777801
2777801 - Cannot Register HANA Replication after Upgrade to HANA 2.00 | SAP Knowledge Base Article
HANA system has recently been upgraded from HANA 1.00 to HANA 2.00. When registering for replication between Primary and Secondary sites, it shows connection...