To complete the Synology DS423+ setup, connect it to your network and power source. Download the Synology Assistant tool from the Synology website and run it on your computer. The tool will detect your DS423+ on the network. Follow the on-screen prompts to initialize the NAS, create storage volumes, and set up user accounts. Configure additional settings as needed, such as data protection and remote access. If there’s any issue, you can contact our team.