But if your 315 MHz devices aren't working, it's probably interference on 315 MHz causing the problem. And if it took weeks for someone to look up the FCC ID p

But if your 315 MHz devices aren't working, it's probably interference on 315 MHz causing the problem. And if it took weeks for someone to look up the FCC ID printed on literally every single device affected by this problem, and learn what frequency it operates on, then I think that suggests a deeper problem.