Hello there.
My problem currently is that my Vive just randomly starts showing me grey screen, and my controllers starting to vibrate and have their lights flickers colours. Now, I have used this set up for a long time, easily a year if not more, and never have had any issues whatsoever. And it also seems to only become and issue when I play Half Life Alyx, after playing it for roughly 45-60 minutes. However even then that issue is new as well, because when I originally started playing said game a week or so ago, I played my first time for at least 3 hours without any issues. Furthermore I have played The Room VR completely, without any issues as well, which again was an endeavor of roughly 2 or 3 hours... Everything is fully up-to-date so it isnt a firmware issue, I have not once moved my light houses, I made sure the light house fronts are clean so they can easily pick up the signals... I have absolutely no idea what could be wrong, so I hope somebody here knows what might be the issue.