21.18 lots of sensor disconnects and reconnects - Edge 840

I installed 21.18 on my Edge 840 last night and went for a ride. My power meter was connected, but didn't show any data for the first 5min. Then it would drop and reconnect, then my HRM Pro would do the same. Lots of disconnected and reconnects last night when this has been rock solid before. Feels like I'm on my old 530 again.

Top Replies

4424429 5 months ago +3

I’ve been having a similar problem. Start up my 840 and all the sensors(HR, speed, power) all show up as connected, then I start my ride. 3 times now and within 5 minutes of starting my ride all of the…
s.polstra 5 months ago in reply to 4424429 +3

I used to have this problem with my 840 when I let it sleep between rides. When I do the full shutdown (long press power button and press the red shutdown option) the sensors stay connected on the next…
4424429 5 months ago in reply to s.polstra +1

Thanks for that! Thats pretty much what I’ve been doing. Quick press of the on/off to put it to sleep after the ride has synced to Connect and Strava. My last ride, with the new public beta (23.0 something…

All Replies

0 jon123rjk 11 days ago in reply to Garmin-Clayton

I’m worried that I may be speaking too soon but …. This may have been fixed with the latest 25.24 fw update. So far so good for me. We’ll see if that holds up. And before this update every time I lost sensors (HR monitor and gears) after the sleep mode.

0 agrayc89 14 hours ago in reply to Garmin-Clayton

I just wanted to chime in and say after the latest update I’m dropping my Wahoo Kickr Snap and Duotrap sensor repeatedly on indoor training sessions. It has happened with the trainer 4 times during at 2.5 hour ride and more times with the DuoTrap than I can count. This is insanely annoying as the power readings fluctuate upon the trainer reconnecting and I have to manually adjust the resistance to meet the power requirements of the workout…for a $500 piece of tech this is pretty unacceptable.