Create a ( launch_ubnt.bat ) in the same folder as the .jar file:
v2.5.1 can crash with java.lang.OutOfMemoryError on modern systems with 16GB+ RAM due to an erroneous memory allocation call.
Alternatively, run the included ubnt-discovery.bat file to launch the tool via the command line, which can provide error logs if it fails. ubnt discovery tool v251 and java on windows 10 updated
Modern Java versions (Java 11 and newer) removed deployment technologies like Java Web Start. The older v2.5.1 tool relies heavily on legacy Java 8 frameworks.
: Many users report success by installing a specific older version of Java—specifically Java 8 Update 251 Create a ( launch_ubnt
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
Ensure your network location is set to rather than Public. The older v2
The version 2.5.1 brought critical improvements like , but it has not been updated since May 2017. Due to the age of the software and strict security requirements on modern systems, getting this Java-based tool to run on Windows 10 can be a hassle.
However, v2.5.1 is a (a .jar file). Windows 10 has progressively locked down Java support, introduced stricter security policies, and removed bundled runtimes. This is where the “ Java on Windows 10 updated ” part of our keyword becomes crucial.
Keep this guide bookmarked. As Windows 10 continues to evolve with new “quality updates” through 2025 and beyond, the exact troubleshooting steps may shift, but the core principles—Java 11, raw socket permissions, and JVM tuning—remain your path to success.