Power meter connection lost during ride – Edge 1040, FW 27.14

Strivike
12 days ago

Device Model: Edge 1040 + Rally RS200
FW: Edge 1040 – 27.14 / Rally – 4.1
Battery Status: OK

Issue:

The connection with the power meter (Garmin Rally) was lost for about an hour. By the time I noticed, power statistics were already compromised.

  • Device: Edge 1040

  • Firmware: 27.14

  • Power meter: Garmin Rally RS200

  • Sensor firmware: 4.1

  • Battery status: OK

  • Symptoms: No power/cadence readings for ~1 hour mid-ride

  • Reconnection was automatic, no manual intervention

  • Affected metrics: Power, cadence, L/R balance, platform offset, power phase

  • Issue not observed on firmware 27.13

Note: Cadence data is present only because I use a separate cadence sensor for redundancy.

  • 0 5 days ago

    Hi, 

    I also do have an Edge 1040 and Garmin Rally XC pedals and since the update 27.14 the power is VERY low

  • 0 3 days ago

    Update: same issue occurred again:
    On yesterday’s ride, after a mass sensor disconnection, I noticed that both power and cadence were stuck at 0.
    power&cadence data missing
    Surprisingly, both the Rally power meter and the cadence sensor still showed as “connected” in the sensor list.
    Sensors apperar to be connected
    Only after manually disconnecting and reconnecting the sensors did the data resume.
    data is back
    Unfortunately, the recording was already compromised; and this happened on what turned out to be my best time ever on a route I ride almost daily.
    Recorded data
    I know that correlation does not imply causation, and this behaviour wasn’t newly introduced in version 27.14, but there are growing signs that this version has made things worse.

  • 0 7 hours ago

    I have the dual sided Giant power meter that came installed on the bike.  It loses connection exactly twice every ride after the  update. If I don't catch the disconnection, my ride data is shot. If i catch it early enough, I can disconnect and reconnect to get the recording to start again.