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WiFi Sync fails for 1MB+ *.fit workouts

In my testing whenever I produce a work-out that exceeds about 1MB in filesize of the fit file, then the sync via WiFi will fail. This leaves me with having to sync via Bluetooth, which works but takes ages for these large files. Can confirm this remains an issue up to 3.90 at least (and probably 4.00 too, judging from the Changelog).

Conditions to reproduce:

- Do a work-out that is long enough or contains enough sensor information for the fit file to exceed the 1MB size. Personally I achieve this with 3h+ runs while using my Stryd footpod which logs additional data (power, cadence, vertical oscilation...).

- Try to sync through WiFi (e.g. through the circular menu Sync field), it will say something like "Transfer Complete (1 File Failed)", and the workout will not appear online.

This has been reported by me previously, but not with the such a catchy title so maybe this time somebody looks at it.

0 Fredderic over 3 years ago

2 year update:

Issue still exists, all my runs&hikes (that I do with a Stryd sensor and a HR sensor) that exceed ~3h50min will be too large to sync via WiFi. The message is "Sync via Wifi - 1 File failed". Each time this happens, I enable bluetooth, start garmin connect on the phone, and do a (painfully slow) sync of the problematic file - this works.

How often does it occur to me?

So far, the 1MB fitfile size has been exceeded by me 48 times in the last 3 years, about 1.5 times per month. In the summer, when I do more long runs and races, it will happen more frequently.

There has been no acknowledgement of the issue, and obviously also no fix, since my initial report 2y ago.