Over the last 2 weeks I've had my Garmin 935 stop recording speed (drops to 0.0km/h) and stop recording distance while cycling. This has happened three times and has previously never happened before (I've had the watch for almost two years now and have done heaps of cycling). The watch automatically pauses the cycling activity when this happens, however I've tried turning auto-pause off and noticed that the heart rate and cadence sensors keep recording. So presumably the watch is still working.
Also, one of the times this happened was during a triathlon (really annoying!) and when I got to T2 after the cycle and to the run the watch functioned correctly - recorded speed and distance and everything else during the run. Once again, makes me think that almost everything is functioning correctly.
I can upload the data if that helps, but what I've noticed is that in all three scenarios by elevation has dropped significantly at the time of the malfunction. During the triathlon the elevation went from +40 to -90 in a matter of seconds (see attached picture).
I've also noticed that all three times I was going relatively quickly (30+km/h) with a headwind coming at me. My watch is mounted on my handlebars with the triathlon quick release thing. So this leads me to believe this has something to do the altimeter/barometer (maybe the pressure from the headwind is messing up the readings). I've tried playing with all the settings but nothing seems to helping.
Has anyone had similar experiences or is this most likely a warranty issue?
