If you encounter problems in a cluster, you must troubleshoot the cluster mode configuration.
If your cluster environment is not responding, verify that:
All server-custom.properties files on the cluster computers are identical.
All server-cluster.xml files on the cluster computers are identical.
All cluster servers' HTTPS ports are accessible from all other cluster computers (with the host name/IP and port as they appear in the server-cluster.xml file).
The external DB host and port (as configured in the server-custom.properties file) are accessible from all other cluster computers.
If you are still unable to work with your server in the cluster mode configured, contact Trellix support.