# Problems with turning ERG mode off during sprint training

**URL:** <https://forums.zwift.com/t/problems-with-turning-erg-mode-off-during-sprint-training/652382>\
**Category:** Bugs and Support\
**Created:** [April 22, 2025, 8:08am UTC](https://forums.zwift.com/t/problems-with-turning-erg-mode-off-during-sprint-training/652382 "2025-04-22T08:08:12Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Leon\_Maximilian\_Banz](https://sea2.discourse-cdn.com/gozwift/user_avatar/forums.zwift.com/leon_maximilian_banz/32/526799_2.png) [@Leon\_Maximilian\_Banz](https://forums.zwift.com/u/Leon_Maximilian_Banz)\
**Post date:** [April 22, 2025, 8:08am UTC](https://forums.zwift.com/t/problems-with-turning-erg-mode-off-during-sprint-training/652382/1 "2025-04-22T08:08:12Z")

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Hi there,

I have the Wahoo Kickr Core with Zwift Ride. I use the up-to-date Zwift app on my windows PC. Firmware of the Wahoo and all the other components is also the newest one. I also adjusted the Wahoo Kickr via App.

As I tried the first Zwift sprint training with 10 x 10 second all out sprint intervals (training plan “Build my FTP”), I encountered the following issue: Zwift tells me to switch of the ERG mode via the Zwift companion app as the ERG mode reacts to slowly. But when I do so, Zwift shows 0 Watt and I stop as there seem to be no input anymore from the Wahoo to Zwift. Only I turn ERG mode back on my avatar starts to cycle again.  
I tried to stay in ERG mode, but the pedaling resistance is way to weak to have a proper sprint training.

Anyone has any clue how to fix this issue?

Cheers,

Leon