Restart the .jar file so it is forced to scan via your active physical network interface. Fix 3: Clear the Java Deployment Cache If the tool crashes on launch or freezes:
If double-clicking does nothing, run the tool from Command Prompt to see errors: Open cmd . cd C:\UBNT\ java -jar ubnt-discovery-v2.5.1.jar Conclusion
The Ubiquiti Discovery Tool is a lightweight Java application ( .jar file) designed to discover UBNT devices (airMAX, UniFi, EdgeMAX) within the same layer-2 broadcast domain. It identifies: MAC Address IP Address Firmware Version Device Model ubnt discovery tool v251 and java on windows 10 updated
Paste the following (adjust the path to your Java installation):
Because modern Windows 10 builds have deprecated WinPcap, you must use . Download the latest version of Npcap. Restart the
Microsoft changed the default network profile to “Public” in recent builds. The Discovery Tool requires “Private” network profile.
Ubiquiti has released newer discovery tools (v3.x and the UniFi Discovery Tool), but remains irreplaceable for one reason: Legacy airMAX and airOS devices. It identifies: MAC Address IP Address Firmware Version
The UBNT Discovery Tool requires Java to run on Windows 10. Java is a popular programming language that allows developers to create platform-independent applications. The UBNT Discovery Tool uses Java to provide a cross-platform compatible utility that can run on various operating systems, including Windows, macOS, and Linux.
: Community members have found success using older versions like Java 8 Update 271 JDK 1.7.0_40 Keep it Portable
Do not trust random third-party sites. While Ubiquiti’s official downloads page now prioritizes v3.x, you can still find v2.5.1 via community archives or Ubiquiti’s legacy repository. The legitimate filename is: