Activity auto tracking no longer functioning

[Robmac2]

So frustrating! Both my wife and I are missing exercise activities (cycling specifically) because auto track is not functioning now.  She has a Charge 3 and I have a 2.  My Charge 2 seemed to stop working around last week in December 2019.  I have used every suggestion put out there that I was able to find in the forums but still no resolve.  

[AlvaroFitbit]

@Robmac2 Welcome to the Fitbit Community! It's great to have you here! Sorry for the delay in my reply.

Let me help  you with your auto tracking feature on your Charge 2. Your device detects activities based on the motion on your arm. The automatic detection is a feature called SmartTrack. For example when using the elliptical machine make sure you have the moving bars so your device detects the motion and record the activity itself, once an Elliptical activity is saved on your account it should show on the Recent Exercise area. If your heart rate is high but there isn't much motion (yoga, weight lifting, etc.) then these activities will be difficult to be detected by your device. Still you can manually log your activity so you have a record on your account or use the activity mode on the device itself.

Let me know how it goes.

[Atasha]

I have had charge 3 for close to two months. It was auto detecting my tennis playing and treadmill. Since the beginning ot this week, it has stopped auto detecting. I was on a treadmill for 20 mins, nothing was recorded. Played tennis for an hour nothing was recorded. Very frusting as I don't know what has changed and how to correct. Please help