The search for usually refers to the older, standalone Java-based application. While this version was a staple for network admins for years, there are a few things you should know:
The tool only finds devices that are in a "pending" or "default" state, or those with discovery explicitly enabled in their settings. ubnt discovery 251 download link
Finding the Ubiquiti Device Discovery Tool: A Complete Guide The search for usually refers to the older,
Your computer’s firewall (Windows Defender or macOS Firewall) might be blocking the discovery ports (UDP port 10001). ubnt discovery 251 download link
The standalone Java application is no longer actively updated by Ubiquiti.