Tacx Flux paired but no power showing on Zwift

My Tacx ■■■ Smart trainer is pairing with both BT or Ant+ and the pairing screen says everything is connected, but no power shows on Zwift, no matter how much or how hard I pedal. My avatar doesn’t move forward and Zwift just says 0w and ‘More power’. I’ve turned everything on and off, made sure the laptop isn’t paired at the same time as the phone, etc.

It seems like the trainer is not tranferring the output to Zwift. Has anyone had anything similar?


On the Zwift Pairing Screen unpair the trainer, click Search, select the option that says ANT+ FE-C and see if that resolves the issue.

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I’ll try that, thanks

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I’ve been trying to pair with the Ant+ since yesterday but it just doesn’t pick it up, so can’t even try that option currently. I don’t understand why, Ant signal used to come up.

Can you post a screenshot of your Zwift Pairing Screen while you are pedaling. You can also post another one when you click on Search on Power Source.

Sure, uploaded are pairing screens with BT only, Ant only and both of them.

What device are you running Zwift on? What are the specs?

I have this exact issue. How did you resolve it please? Thanks

I updated to the latest software version from the tacx utility app. The problem reoccurred and updated the software again and it’s been ok since

I have the same problem with my Taxc Vortex. I updated the firmware but I still don’t have a power value. I am on the version 3.1.22/1.1.3 is it still working for you ? What else can I try ?
Thanks for your help

Hi I’ve got the same problem. Have u resolved that issue? Thanks

Yes the right side of motor, where you plug the power cable, was unclipped. I must have bumped the home trainer when moving it. It was not a software issue.
Hope it will fix yours


Can you describe how you did this? I am in the same situation. My brand new Flux S is paired in both Zwift and the Tacx Training and Utility apps but shows no power when I spin. Did you have to unscrew and pull the case off of the trainer itself to access the electric motor?


Make sure you’ve updated the software on the tacx app.

After doing that a couple of times I did that every time it wasn’t connecting and it did the trick. Whenever I go on the HT I check the version now.


There was a gap between the two plastic pieces and I just had to push them back together. I didn’t open the home trainer. Sorry I could not help you more

Good luck

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You have just literally saved my sanity! What a simple little fix - thank you so much!

Glad it worked!