The Ubiquiti device discovery tool might help, although I'll tell you right now I've seen it not find things that I know were on and working. Ubiquiti - Simplifying IT
In my experience, the dinky little passive PoE injectors are more likely to fail than the radios themselves, so try swapping injectors if you can't get the radio to respond. It might be that one of them went bad.
In my experience, the dinky little passive PoE injectors are more likely to fail than the radios themselves, so try swapping injectors if you can't get the radio to respond. It might be that one of them went bad.