You're a bloody hero @Tango87!
I do intense VR dancing for long sessions and my wireless kit has been giving me hardcore grief since day 1. Frequent greyscreens & hangs, and full-on blackscreen cut-outs exactly as you described.
I've tried numerous solutions which in the end did eliminate my greyscreen and hanging issues, but I just couldn't crack why the blackscreen cut-outs were happening or how to fix it.
I eventually figured out, like you, it was the USB connection from the kit to the power supply. After VERY VERY LUCKILY finding your solution a couple nights ago, I gave it a shot - wrapping some plumber's tape 5x around each end of the cable and plugging it in.
DIDN'T CUT OUT ONCE during a 4 hour rave session.
Bloody amazing. I can't describe how relieved and happy I am that it's finally working just about flawlessly. I'm not gonna count on it completely solving my problems, but since the tape fix, I just haven't cut out or had any issues whatsoever.
Thank you so so much. I've been trying to sort this crap out for like two years at least lmao.
Cheers!