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Forerunner 955 not updating lactate threshold

Forerunner has stopped updating lactate threshold. This happened before (mid may to mid June). I posted on one of these boards, someone from Garmin replied, asked some questions about my account,and it started working (I assumed they did something). Same thing now for about 3 weeks. I hope someone will reach out and fix this again.

I can't include a screenshot of my phone, but here on the app, you can see the last update was july. My app has it last  updated Aug 3rd, but stops there.  Hope someone can help.

  • There are multiple threads on this topic going back 6+ months. 

    There have been issues with both LTHR autodetect and the syncing of new LTHR values to Connect  

    For me, the autodetect still works but the new value often doesn’t make it from the watch to Connect. One solution I’ve found is to leave my phone off and force the watch to sync my run to Connect directly over wifi rather than through my phone via Bluetooth. For whatever reason this seems to work for some people.