Resistance drops to zero whenever I exceed around 200W

Whenever I exceed 200W the resistance of my Zwift Hub will drop to zero and the LEDs will blink in all colors for a few seconds. The device seems to be disconnected and 0 W is shown in Zwift. The only thing that changed since the last time that it worked is that I moved house and my MacBook has received a new update. Has anyone had a similar issue? My device is basically unsuable at this point.

Sounds like you should contact support to find out if the trainer is faulty.

I assume you have not paired the trainer to multiple devices…