We have a recent report of a number of Neo 2T units that are failing to engage in erg mode in Zwift.
At this time, the problem has been confirmed on 3 units in Switzerland, but we are looking for additional input from Neo 2T owners as well.
Other owners of Neo 2T units on the same firmware have been working since .32 firmware’s release without any such issues, which suggests there has been a hardware change that is causing this problem on newer Neo 2T units.
Garmin support writes:We are currently experiencing an issue with latency / instability of resistance in erg mode using third party apps such as Zwift. We have an open case internally on this issue and we hope to release a software update in early January that will resolve this issue.
December 21, 2019 — Tacx have confirmed that there is no such problem with Neo 2T. The linearity and stability erg mode firmware referenced by Garmin support is for Neo 2 (it was tightened up in version .31 for Neo 2T), which we have been aware of for many months. Tacx have also stated there were no hardware changes in Neo 2T that would cause “newer” models to behave differently than previous models. In summary, it appears that Garmin support were simply wrong, and none of us should be surprised by this.
That said, we will be doing some extensive testing with Neo 2T, Zwift, and other trainers to compare the behaviors and post our results. Stay tuned.
December 20, 2019 — Currently under investigation by Garmin.
Thanks to Tracie May for discovering and reporting this problem.