Run the installer and complete the setup wizard using default paths. 2. Configure Windows Environment Variables
Since v2.5.1 is officially deprecated and increasingly difficult to run on updated systems, Ubiquiti recommends several newer options:
To use the tool in 2026, you will likely need to install a legacy Java version alongside your current one, or use an OpenJDK alternative. 1. Download Necessary Components Download the JAR file. ubnt discovery tool v251 and java on windows 10 updated
I should open some of these pages to gather more detailed information. opened pages provide useful details. The GitHub page mentions the original tool hasn't been updated since 2017 and is CPU-heavy. The "Outdated As Hell" page explains why the tool fails on newer Java versions and offers a fix. The changelog for v2.5.1 is also available.
: The controller itself automatically scans and displays pending adoptions within its dashboard without needing a separate discovery tool. Run the installer and complete the setup wizard
Right-click the Windows Start button and select or PowerShell (Admin) . Change the directory to your application folder: cd C:\UBNT\ Use code with caution. Explicitly call the Java 8 binary to run the jar file:
But for years, the tool has come with a major headache: . opened pages provide useful details
The tool only works on the local network segment. Ensure your computer is connected directly to the same switch/network as the UBNT devices. Issue 2: "Java Virtual Machine" or "Fatal Exception" Errors
If the JAR file fails to open, use the associated batch script provided in the download.