The core workflow every other tutorial in this section builds on: getting one device from "not monitored" to reporting data.
From Devices, click Add device. You can also add a device directly from a discovery scan result, see Auto-discover devices on a subnet.
Give the device a name that matches your existing naming convention, its management IP or hostname, and the site or group it belongs to, this drives dashboard grouping and alert routing later.
Pick the protocol the device supports. SNMP is the fastest path for most routers and switches; use SSH for devices you also want config backups from, and REST API for cloud and virtualization platforms.
Click Add device. Zynty polls it immediately to confirm reachability, if it can't connect, you'll see the specific error (timeout, auth failure, or wrong port) rather than a generic failure.