2962128 - Connection to master instance failed due to insufficient configuration on master side

• Setting up high availability in the Cloud Connector fails.
• In the shadow instance, you see the following message:

• In the shadow instance logs, you can see the following error:

Connection to master instance failed due to insufficient configuration on master side [HA communication with master is not set up properly. Reconnect shadow system
...
request <master-host>/shadow failed with 400 (Bad Request) HA communication with master is not set up properly. Reconnect shadow system.

• In the master instance logs, you can see the following error:

No information about shadow system. Execute handshake first.

SAP Cloud Connector

ha scc , KBA , BC-MID-SCC , SAP Cloud Connector On-Demand/On-Premise Connectivity , Problem