Hi Jaroen, everything works to my satisfaction now. Below is my concerns and the resolution:
Just pair the Ant ###### trainer for all 3 devices in the pairing screen. Zwift will remember it as long as you turn the trainer on before launching zwift.
I used to have my power and cadence drop to 0 at random during a ride. It would last from a couple seconds to 20+ seconds (bad enough that my avatar would puller over, unclip and the results screen would pop up even though I was still putting out 200-300 watts. The problem happened with the wired cadence sensor and in “sensorless” mode. The problem was not how close the any dongle was to the trainer, but actually interference picked up by my long USB extension cable which was run along or over other wires, adapters etc. I put the extension into another USB port and lay the cable so that it wasn’t touching other cables. Haven’t had a drop-out in weeks now.
There was a subtle creaking sound from the trainer when I was pedaling at some cadences. I took the 7 screws out and a bolt to remove the plastic cover. The noise was replicated when I put pressure on a small plastic wheel in the middle of the belt/pully system. I dropped a little oil behind the wheel on the metal part which is adjustable for pully tension, let it work in holding trainer upside down etc. Problem solved.
I used to have bad framerates in zwift with my old gtx 460 1gb video card. After taking some advice here and modifying my settings file, and also after a zwift update that came out a couple weeks ago, it has been running flawless.
Just as a precaution, I did connect the included wired cadence sensor and pedal 2-3 forward stroked with the trainer on before launching zwift. This is the Elite instructions to ensure wired sensor is used over “Sensorless Cadence” mode. The wired cadence sensor plugs in directly adjacent the power plug on back of trainer. It took me days to find that.
I set trainer resistance to 100% in zwift, no problems there.
I had a driver issue with Ant on my first day; I manually updated the driver with the included driver from the cd via Device Manager and that resolved that issue as trainer was not pairing at all.
I’m glad I am persistent and good at tinkering with these things. It all works perfect now, but this would have been intimidating to a non-technical person I think.
Oh, as for trainer ac plugging in and out, I bought a Belkin AC power timer with 0.5, 3 and 6 hour settings. Just tap the on button and it’s good to go without worrying about trainer being left on too long.