Sometimes, Windows 10 forgets that .jar files should be opened by Java. Right-click ubnt-discovery-v2.5.1.jar . Select -> "Choose another app" . Select "Java(TM) Platform SE binary" . Check "Always use this app to open .jar files" . 4. Alternative Method: Using ubnt-discovery.bat
With the release of and the latest Windows 10 updates, things have changed—for the better and the worse. Here is everything you need to know to get the tool running today .
To get the legacy Java tool running on an updated Windows 10 system, you must meet specific software conditions: Java Version : The tool is most stable on Java 8 Update 251 Version Mismatch ubnt discovery tool v251 and java on windows 10 updated
Once you have the tool running, protect your setup:
The remains a critical utility for network administrators needing to locate and manage Ubiquiti devices—such as airMAX antennas and UniFi Access Points—across a local network. However, running this aging tool on modern versions of Windows 10 often presents challenges, primarily due to Java compatibility and security updates. Sometimes, Windows 10 forgets that
Windows 10 does not ship with Java pre-installed. Furthermore, strict security protocols introduced in recent Windows 10 updates and newer Java versions frequently block legacy apps from accessing local network adapters. Step-by-Step Installation and Setup
Install the latest version of Java (JRE 8 or higher is recommended). Select "Java(TM) Platform SE binary"
Click and explicitly type file paths or local network schemas if applicable. For local execution, adding an exception for local file access helps prevent the JRE from blocking the application's graphical user interface. Tweak Deployment Properties
Newer versions of Java (9 and above) introduced strict module systems that broke the old code. If you have Java 11, 17, or higher installed, the tool crashes immediately upon startup.
To make the tool work on a modern, updated Windows 10 system, you need to handle both the Java dependency and the executable permissions correctly. 1. Download the Necessary Files
If the Java issues are too complex, Ubiquiti strongly recommends using the , which requires no Java installation, as stated in UI community forums.