: While not Ubiquiti-specific, it can locate devices by their MAC addresses if you know the manufacturer's OUI. ubnt-discovery tool not working on modern JREs (even JDK8)
Right-click the file, select , and choose Java(TM) Platform SE binary . Method B: The Command Prompt Launch (Recommended)
This requires that Java is in PATH and that the Windows 10 UAC prompt is suppressed (run as scheduled task).
Download the official Windows x64 installer for from Oracle or Adoptium (Eclipse Temurin). Run the installer and complete the setup wizard. ubnt discovery tool v2.5.1 and java on windows 10
To run the on Windows 10, you must use a legacy version of Java, as modern versions (including later updates of Java 8) often cause a "Java Exception" or fail to open due to code obfuscation issues. Java Requirements & Setup
This guide provides a comprehensive look at the tool's classic version 2.5.1, detailing how to get it working on Windows 10, overcome its legacy Java compatibility issues, and explore modern alternatives.
Download the legacy ubnt-discovery-v2.5.1.jar and its companion configuration file from a verified repository like the i8 Digital Downloads Index or dl.behbahan.net . : While not Ubiquiti-specific, it can locate devices
Click and paste your Java bin path, for example: C:\Program Files\Java\jre1.8.0_xxx\bin Click OK to save and close all windows. 3. Launching the Tool on Windows 10
The UBNT Discovery Tool is a Java Web Start (JNLP) and traditional Java Swing application. Without Java, the .exe launcher will crash immediately or display a silent failure.
After hours of trial and error across forums (RIP old Ubiquiti community threads), here is the method that consistently works. Download the official Windows x64 installer for from
: Windows Defender Firewall or third-party antivirus suites are blocking the Java platform from listening to UDP broadcast traffic.
Have you found a cleaner way to resurrect old Ubiquiti tools on modern Windows? Let us know in the comments.
For maximum stability, many users find that Java 8 (JRE 1.8) is the most compatible version. Specifically, older builds like Update 241 or 251 have been reported to work when newer ones fail.