People will hear this and go, "aha! Crowd sourcing!" The issue with that is that with modern technology the problem is overwhelmingly user error (or to be generous, perhaps UX). So you will spend essentially all your time chasing down people who don't know how to charge their product, or have their powerline adapter hooked up upstream of a UPS, etc
Your wiring is to blame. Maybe some staple missed and nicked the wire, maybe you have something leaking EMI, maybe you just have dirty power.