Edge 840 restarted mid-ride

This was a problem with my 830. It seems to be a problem with my new 840 as well. Towards then end of a 45mi ride 840 turned off and restarted. It continued after reconnecting to all devices but any distance traveled was lost. I can provide the crash logs if that helps.

Top Replies

Gutty2400 5 months ago +4

Mine has done this same thing the last two rides over a few hours (right around the 3 hour mark). Anyone have a solution? Unless I missed it all I see in the thread is that it has happened to a few other…
NathanBerg 4 months ago +4

Same problem today right around 3:00. C’mon, Garmin! I don’t want to have to get a Wahoo, but I will!
Clockwoo 4 months ago in reply to Luko79 +4

Does Garmin look at these forum and take ownership of problems such as these? This would be considered a P1 issue in most tech companies and they would be working around the clock to fix.

All Replies

0 Racer17jr 1 month ago

I didn't have any issues with my 840 until I connected this radar Unit RCT 715. Something is making it reboot.

0 8635656 18 days ago

Same issue here after more than a year of regular usage without a problem. 840 + HRM-Dual + speed + Rally pedals + SRAM AXS. Lost 5 minutes of data plus HR trace and intensity minutes for entire ride yesterday. Rebooted post ride and will try again today. But as a result have a ~60MB ANTPKT log file on the debug folder. Are others seeing this? Is there a channel set up to upload this file to Garmin? Prefer not to have large diagnostic files consuming storage.

Thanks!

Harris

0 sksklein 18 days ago

Same story as Harris. My 840 has worked well for over a year but has now shut off three times approximately 2.5-3 hours into the ride. Plenty of battery power, not on auto-sleep or battery saver, running 24.19. It's connected to a Varia, Shimano Di2 and a Stages power meter.

0 Racer17jr 18 days ago in reply to sksklein

I dumped the varia, some of the problem solved. My 840 still has issues with wahoo pedals after this varia problem. IM Florida this weekend and my wahoo pedalls would not connect. This garmin is really frustrating. The critical inputs we are looking for are not functional, but all the garmin gee whiz garbage works just fine.

0 caza64 16 days ago

Un redémarrage hier en pleine activité sans perte de données (sauf pendant la période de redémarrage...).

Par ailleurs j'ai un soucis de mise en pause aléatoire du compteur alors que je roule à vive allure ce qui occasionne des erreurs de distance parcouru sur l'ensemble du parcours. Avez-vous cela également ?

0 Niksterberg123 16 days ago

Mine has been doing the same thing over every ride greater than ~1 hr. Have factory reset the device, upgraded through several FW versions, and manually added back sensors without luck. 3iii power meter, Polar H10 HRM, and recently added Varia 515. The problem started long before the Varia. 24.19 FW version.

0 shreddagorge 13 days ago

Adding to the sample set. No problems until last weekend when it happened about 2/3rds into a ~3 hr ride. I always use a Varia 515 and Polar H10. I invariably use power meters (and disable them otherwise), but this bike wasn't equipped with one. Firmware version 24.19.

Different problem entirely, but after my last Varia 515 firmware update I get frequent false positives when I start to ride from a dead stop.