# Power not showing

**URL:** <https://forums.zwift.com/t/power-not-showing/133049>\
**Category:** Bugs and Support\
**Created:** [October 27, 2019, 8:16am UTC](https://forums.zwift.com/t/power-not-showing/133049 "2019-10-27T08:16:54Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Matthew\_Serle](https://sea2.discourse-cdn.com/gozwift/user_avatar/forums.zwift.com/matthew_serle/32/47767_2.png) [@Matthew\_Serle](https://forums.zwift.com/u/Matthew_Serle)\
**Post date:** [October 27, 2019, 8:16am UTC](https://forums.zwift.com/t/power-not-showing/133049/1 "2019-10-27T08:16:54Z")

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Hi, I have a basic setup with a garmin cadence/speed sensor linked to my windows laptop with an ANT+ USB dongle. I have had to change the battery in the sensor and re-paired it into zwift and slected the right trainer. However although the cadence is showing in Zwift, it is not calculating any power so I am not going anywhere. I have tried restarting several times and always the same result.

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**Author:** ![Kenny\_Grieve](https://sea2.discourse-cdn.com/gozwift/user_avatar/forums.zwift.com/kenny_grieve/32/76294_2.png) [@Kenny\_Grieve](https://forums.zwift.com/u/Kenny_Grieve)\
**Post date:** [October 27, 2019, 9:09am UTC](https://forums.zwift.com/t/power-not-showing/133049/2 "2019-10-27T09:09:40Z")

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Hi Matthew,  
I have similar issues when I lose my internet connection. I usely have to reboot my laptop to clear any glitches and start again. My trainer is in the garage.