Cadence Sensor - Intermittent Connection

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John Woo

• April 20, 2021 18:48
• Edited

I have two K2 units, both with intermittent cadence connection. I’ve unpaired/paired and installed fresh batteries in the sensors. The connection continues to be intermittent, so I assume the problem is with K2. Power meter readings are fine. This started to occur two software updates ago.

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  Michiel Modderman

  • April 21, 2021 07:26

  What brand are your cadence sensors? Do you connect them with Ant+ or Bluetooth?

  I use a cheap Magene Ant+ cadence sensor. No connection problems since the last updates.

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  John Woo

  • April 21, 2021 13:40

  Quarq on one bike Wahoo on the other and yes, both Bluetooth and Ant+ always on. Thanks.

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  Nigel Christmas

  • April 25, 2021 21:59

  John your not alone both myself and the wife having this issue although mine seems far worse. Both on identical power meters so something strange going on.

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  Akhil

  • April 26, 2021 13:28

  Hey All,

  Thank you for your observations here! We have received similar reports around this particular concern with the cadence data missing from power meters, Our team is presently working on a fix and we shall ensure to put a fix for it soon :)

   

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  John Woo

  • April 26, 2021 18:45
  • Edited

  Hey Akhil.  This problem still persists after the latest firmware update that came out last week.  During my ride yesterday it took about 15 minutes for cadence readings to show up on our K2s.  Then later after pausing a ride the cadence reading disappears again on one of the K2s. Thank you for your attention on this issue.

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  Joel Defer

  • July 03, 2021 17:27
  • Edited

  I have done three rides with my new Karoo 2. Ride 2 and 3 I had to go to settings and push the sensor settings to get connection with my Garmin cadence sensor. HRM and speed sensor stay connected. 
  Explanation? Solution?

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  John Woo

  • July 04, 2021 00:58

  Joel, have you downloaded the latest firmware update? I believe the connectivity problem was fixed like three updates ago.  I have two K2s and both cadence readings have been working since then.

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  Joel Defer

  • July 04, 2021 07:05

  Yes. Latest update installed. Once connected there is no problem, but for now I have to reconnect manually to get cadence working. 

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  Nigel Christmas

  • July 04, 2021 07:38
  • Edited

  Joel have you done full factory reset.
  Only takes 5 minutes and for me have no issues any more since getting into doing this regularly.

  Without reset I think you can get left over corrupt data.

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  Joel Defer

  • July 04, 2021 12:47

  Haven’t done it. 
  But will leave it for now. Wait and see if it persists. 
  Thanks for the help. 

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  John Woo

  • July 04, 2021 19:15

  Hey Joel, Nigel's suggestion is a good one.  I don't think there's any downside to a factory resent because all your settings and ride data are saved on the server and will be repopulated when you reboot. Otherwise the obsolete or outdated data left in the cache could corrupt K2's operation.

  We should not have to factory reset manually.  I asked HH many moons ago if the downloading of a software automatically clears old data from the cache.  Apparently not.

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