The primary is unable to communicate to the new appliance on port 8000, it is however able to connect on port 22.
Ensure there is no previous cluster configuration (retain data not used) on the Replica. If there is, delete all reference (pre-enrollment snapshot) on this replica and try adding it again.
If this is a brand new appliance with no previous cluster configuration:
- Ensure both appliances are running the exact same version 2.5.x version
- Ensure that port is 8000 open in both directions between the appliances. A Telnet Test can be used to check this
- Reboot the replica. When it has successfully booted, attempt to add it to the cluster.
- Perform a restart of the Primary and then attempt to set up the cluster again.