# Zwift Hub manual calibration not working

**URL:** <https://forums.zwift.com/t/zwift-hub-manual-calibration-not-working/608216>\
**Category:** Zwift Equipment\
**Created:** [June 14, 2023, 4:26pm UTC](https://forums.zwift.com/t/zwift-hub-manual-calibration-not-working/608216 "2023-06-14T16:26:35Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![D\_I](https://sea2.discourse-cdn.com/gozwift/user_avatar/forums.zwift.com/d_i/32/481369_2.png) [@D\_I](https://forums.zwift.com/u/D_I)\
**Post date:** [June 14, 2023, 4:26pm UTC](https://forums.zwift.com/t/zwift-hub-manual-calibration-not-working/608216/1 "2023-06-14T16:26:36Z")

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I use Zwift Hub with Apple TV and connect it to the Apple TV using the companion app. When I click the wrench to perform a manual calibration, it just keeps saying, waiting for device, or something like that.

So I can never do a manual calibration, any ideas as to why?

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**Author:** ![Gerrie\_Delport\_ODZ](https://sea2.discourse-cdn.com/gozwift/user_avatar/forums.zwift.com/gerrie_delport_odz/32/437556_2.png) [@Gerrie\_Delport\_ODZ](https://forums.zwift.com/u/Gerrie_Delport_ODZ)\
**Post date:** [June 14, 2023, 5:12pm UTC](https://forums.zwift.com/t/zwift-hub-manual-calibration-not-working/608216/2 "2023-06-14T17:12:33Z")

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I don’t have a Zwift Hub.

But I would assume since you are using ATV you are using Bluetooth. Bluetooth can only connect to one device at a time, try calibrating when the ATV is turned off.

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<div class="post-metadata">

**Author:** ![D\_I](https://sea2.discourse-cdn.com/gozwift/user_avatar/forums.zwift.com/d_i/32/481369_2.png) [@D\_I](https://forums.zwift.com/u/D_I)\
**Post date:** [June 14, 2023, 6:44pm UTC](https://forums.zwift.com/t/zwift-hub-manual-calibration-not-working/608216/3 "2023-06-14T18:44:33Z")

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Wait, how do I calibrate when the ATV is off? The hub won’t be connected to anything?

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<div class="post-metadata">

**Author:** ![Gerrie\_Delport\_ODZ](https://sea2.discourse-cdn.com/gozwift/user_avatar/forums.zwift.com/gerrie_delport_odz/32/437556_2.png) [@Gerrie\_Delport\_ODZ](https://forums.zwift.com/u/Gerrie_Delport_ODZ)\
**Post date:** [June 14, 2023, 6:50pm UTC](https://forums.zwift.com/t/zwift-hub-manual-calibration-not-working/608216/4 "2023-06-14T18:50:45Z")

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The companion app.

I may be completely wrong here.

I moved the question to Zwift Equipment for more help from that team.