I will try the above recommendations this evening. I struggle to get up to the 30kph required to calibrate the trainer. Perhaps it is the heavier flywheel on the Flux compared to the non flywheel of the Vortex.
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I have the Flux S and can hit the calibration speed easily when I’m on the big ring on the front.
But (using an ipad for the controller) I find that I have to unplug the trainer before starting or (either the ipad or trainer) won’t do erg control (where I don’t have to shift). I can’t figure out which is to blame but garmin was no help when I asked for help.
I switch between a P2 and R3 with a 10 and 11 speed cassette so I like to just stick the rear gear in the middle and erg it out.