ERG mode workout does not work

Hello dear Zwifters.
I recently had a problem with my woukouts.
First of all, my setup.

  • Wahoo Kickr Core
  • Apple TV 4K
  • Wahoo chest strap
  • Edge 1030 plus (is used for extra recording)

so now my problem.

Start a workout in ERG mode at 5 min @ 170 watts.
everything works. after 5 minutes the next block comes e.g. 250 watts for 1 minute.

Unfortunately, he does not take over the mudflats. it just stays at 170 watts.

Today I tried to recalibrate. before everything was completely de-energized.
Strangely, it worked up to a longer block in the middle of the workout.
I had to 15 min @ 270 watts.
after 15 minutes he did not take over the watts from the next block again.

Do you have a possibility to fix the problem?

Best regards

I am having the same issue since yesterday. And also a friend of mine but for even longer.

I did a spindown and there have been no changes concerning the setup.

The kickr is not adapting to the new wattage demanded by the zwift workout. Even when you try disabling ERG mode via companion app it takes like 20 seconds to actually do so.
However, this issue seems to be temporary. If you keep riding everything goes back to normal after a few minutes. Nonetheless, it prevents successfull completion of a workout if it occurs.

The problem seems to be the communication from zwift to the trainer, not the other way around. So I hope this will be fixed!!!

Same problem here.

Up until today I was using my Kickr Core with my iPad Air 2 and everything worked perfectly fine. Also with my MacBook Pro (2012) I never had any problems.

I recently bought Apple TV 4K (2017 version) and was using it for the first time today. I used ERG mode with a custom recovery workout that basically consists of a five minute warm up starting at 105W up to 165W then it’s 50 mins of 165W and then followed by a cooldown from 165W down to 105W again.

It all started without any problems, but when I reached 140W and had to go up to 145W it started lagging behind 5W (so I was at 145W when I should have been at 150W and so on). When it kept me at 160W instead of 165W in the 50 min interval I stopped pedaling, went to the pairing screen to see if something happened to the connections, but everything was fine. When I returned ERG mode engaged at 165W immediately and stayed there for the whole 50 mins. When cooldown began it stayed at 165W for the whole 5 minutes even though Zwift showed the correct power for the cooldown interval. Strangely Zwift did not even say “power too high” or “less power”.

Any idea what’s wrong? I’m directly connected to Apple TV with my Kickr Core (power source and controllable and cadence) and my HRM.

Zwift is up to date on version 1.19.x as I just downloaded the app today onto my Apple TV.