Click and paste the path to your Java installation bin folder (e.g., C:\Program Files\Java\jre1.8.0_xxx\bin ). Click OK to save and exit. 3. Download and Run UBNT Discovery Tool v2.5.1
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| Alternative | Description | Best For | | :--- | :--- | :--- | | | A free mobile app for iOS and Android from Ubiquiti that includes device discovery and network analysis tools. | Quick checks and scans directly from a smartphone or tablet. | | UniFi Network Application (Official) | The full-fledged management software for UniFi devices. It automatically discovers devices and provides comprehensive configuration tools. | Network administrators who need deep management and monitoring capabilities. | | Third-Party Network Scanners | Tools like Advanced IP Scanner , Angry IP Scanner , or even command-line tools like nmap can scan your network and identify Ubiquiti devices by their MAC address or manufacturer prefix. | Users who prefer a non-Java solution or need a simple, one-off scan. | | Community-Driven Fork | A modern, open-source re-implementation of the Ubiquiti Discovery Tool on GitHub. It's actively maintained, updated for newer Java versions, and features a more efficient, less CPU-intensive design with both GUI and CLI support. | Users who want the classic tool's functionality but with modern performance and compatibility. |
The primary hurdle is that v2.5.1 was built using code obfuscation techniques that are considered "illegal" by modern Java standards (e.g., using reserved keywords like this.super as identifiers). Optimal Java Version: Users report success only with Java 8 (JRE 1.8) , specifically versions prior to Update 281 Recommended Build: ubnt discovery tool v2.5.1 and java on windows 10
@echo off "C:\Program Files (x86)\Java\jre1.8.0_311\bin\java.exe" -jar "C:\Path\To\Your\ubnt-discovery-v2.5.1.jar" pause Use code with caution.
Press Windows Key + X and select or PowerShell .
The tool needs a packet capture library to sniff the network for UBNT discovery broadcasts. Install Npcap (with WinPcap compatibility mode checked) if the tool fails to see any devices. 2. Setting Up the Correct Java Environment Click and paste the path to your Java
: Ubiquiti has officially stated that the Java discovery tool is no longer supported Ubiquiti Community Working Solutions & Workarounds
Here is everything you need to know to get the tool up and running.
Windows 10 must know exactly where to find the Java executable to run the .jar file. Download and Run UBNT Discovery Tool v2
The Ubnt Discovery Tool requires Java to run on Windows 10. Java is a popular programming language and runtime environment that allows applications to run on multiple platforms. The tool uses Java to provide a cross-platform compatible interface and to interact with the devices.
For example, find a line that looks like this: start /b javaw -jar "ubnt-discovery-v2.5.1.jar"
Paste the following lines (adjust the paths to match your system):
For modern UniFi setups, local discovery is handled entirely within the web-based UniFi controller network suite.