An error occurs when installing the backup agent. (Registration was failed. Please write correct IP in hosts file.)
As a common cause, the following Hosts file settings may be incomplete.
Please refer the following documents.
Tutorial - Backup - Backup Server Requirements
Before installing an agent software into the backup target server, edit each server’s HOSTS file.
Each HOSTS file contains its hostname to generate an installer and an IP address to connect with Common Function Gateways so that a host name resolution becomes available via the backup target server.