Zwift malfunctions

My hub keeps rebooting on most hills. Happens mainly on hard hills which requires high low cadence. The trainer’s LED shuts off after a couple of seconds of low cadence power then about a second later the LED’s flash in different colours before it connects again. The picture is what it looks like on screen

Potential overheating is my first guess but could be other malfunction.

Have you get a fan you can point at it just to try and eliminate this?

You’ll obviously know quite quickly of this works.

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