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840 drops all sensors when starting an activity

840 loses connection with all sensors when starting an activity. If i soft reset the 840 on restart all sensors connect again.

840 Solar, Varia front light, Varia Radar, Vector 3 pedals, wahoo tickr HR strap.

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Garmin-Maeve over 1 year ago +1 verified
thank you all for your participation in this thread, can you please send me a direct message referencing this thread with the following info?
- software version of the Edge
- Do we have permission to view…
L.Rouge over 1 year ago in reply to Garmin-Maeve +2
Garmin-Maeve . I notice the xx.79 Beta for x30 devices which had one item,
- A fix to address sensor dropout issues experienced by some customers
seems to have been closed without Garmin comment or wrap…
Zenkl over 1 year ago +1

I recognized the same :(
Getbrem over 1 year ago in reply to Zenkl +1

Every ride it keeps happening!

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0 1978kox over 1 year ago in reply to Fany7676

sì, ho il mio edge 2, proverò a rimuoverlo, grazie

0 Correlations over 1 year ago

Same here !
All sensors dropped.
Varia, HR, speed, and cadence.
More over, sometimes I can't even connect them back again during the ride.
I'm starting to wonder if it is actually a 'downgrad' going from my bug free 830 to the 840 solar.

0 Scooby1680 8 months ago in reply to Correlations

Same happened to me today. Lost an hour's power data mid-ride before I notice, pulled over and restarted the unit. I'm not starting to wonder. It *is* a downgrade. UI: worse. Reliability: worse. Unit/bezel size/weight: worse. Visibility: worse. Expense: way worse. Battery life: better. ClimbPro: good but not worth everything else.

The training features are utterly superfluous if you're on any training platform at all.

This is my fourth Garmin unit. My next will be a Wahoo. What sort of OS architecture allows a misbehaving IQ field to crash sensors?!

0 pufferfish 8 months ago

I also have been experiencing this (rarely, but annoying when it happens). I also have a Varia radar so maybe that’s the common factor here. Some additional info here if it helps: https://forums.garmin.com/sports-fitness/cycling/f/edge-840-series/356573/all-sensors-disconnect-shortly-after-activity-start

0 lightalmighty 8 months ago in reply to pufferfish

Got the same every ride. 840 on charger in sleep mode. Power on, and...no sensors attached.
After Power Off and On everything looks good.

FW19.22
HR, PowerMeter, Di2, Varia, sometimes Phone

0 Scooby1680 8 months ago in reply to pufferfish

Happened again today after I removed all my Connect IQ fields except Windfield. I had a Varia RTL510 until this week, now I have an RTL515, and still it happens. I lost about an hour's power data this time. It's becoming useless for training outdoors at all and people on rides get annoyed when I pull over to reboot Every. Single. Ride.