OpsCenter cannot create a local cluster using a public IP address

Use a private IP address if you encounter difficulty creating a local cluster with a public IP address.

Error that occurs when attempting to create a local cluster using a public IP address:

Error Installation Stage Failed: The installed agent doesn't seem to be responding

If you encounter any difficulty creating a local cluster with a public IP address:

Providing the EC2 public hostname instead of the IP address results in successful creation of the cluster.
Using a private IP address when provisioning on GCE results in successful creation of the cluster.

Note: Using a private IP address is recommended. In cases where communication is possible by both public and private IP addresses, private IP addresses are usually preferable. Private IP addresses often have more direct communication paths, which results in fewer addressing problems, better performance, and lower costs in situations where network traffic might be metered.