Running the Ubiquiti Device Discovery Tool v2.5.1 on a modern, updated Windows 10 machine often triggers a "Java Exception". This is primarily because the tool relies on older Java versions and illegal variable names (e.g., this.super
: This typically indicates a version mismatch. Many users report that newer Java 8 updates (like 281 or higher) break the tool, necessitating a rollback to Version 8 Update 251 . Empty Device List : If the tool opens but finds nothing:
Getting Ubiquiti Discovery Tool v2.5.1 to Work on Windows 10
It sees older M-series devices well but often misses newer AC-series or UniFi gear. Ease of Use