I have just received a brand new Tacx Vortex. I purchased a Garmin Ant+ dongle to use on my MacBook Air. Everything connects fine. I updated to Tacx 3.1.13 with the Tacx Utility App and I can control resistance of the Vortex using the Tacx Trainer App.
In Zwift, it sees the Vortex immediately and I can connect to power, speed and cadence readings immediately. The big problem is that Zwift is not controlling the resistance of the Vortex. There is no change at all.
I’ve tried everything including unpairing and repairing, unplugging the Ant+ dongle, unplugging the Vortex and replugging it back in. Rebooting the MacBook. Nothing seems to work. I also moved the MacBook Air to within 2 feet of the Vortex but I know that’s not the issue because it’s reading the power, speed and cadence fine.
The strange thing is that it did work once. I had stopped pedaling, unpaired the power reading and selected something else that showed up in the pairing menu that read “power” instead of “smart trainer” and that worked so I thought I had fixed it. But now on the multiple following rides I tried doing the same thing as well as all of the above. Zwift simply does not want to control the resistance of the Vortex for some reason. I’m quite disappointed.
And yes, I’ve read similar posts here and tried everything with no luck.
Any ideas are welcome!