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965 wifi sync causing crash/restart

3606904

For the 2nd time in about a month my 965 (latest fw) has just crashed/restarted after initiating a wifi sync. WiFi sync works fine for a few weeks, or more, then fails with the blue triangle and restart of my 965. After successful restart and fresh sync there's a few hours of data missing in the Connect app despite data such as body battery showing as uninterrupted for the day on my watch...

TLDR; 965/WiFi/router seem happy with each other until they're not and a manual sync trips up the watch. Has anyone else experienced anything like this and have a fix, preferably not a reset?

  • 0 in reply to Garmin-Hannah

    When i assign wi-fi sync to another button it does not crash. Also when disconnected from power outlet is does not crash. It’s clearly a bug. Maybe a unusual setup but it should not crash. 

  • 0 in reply to Maurice

    Except it does crash for me when disconnected from power (and no shortcut). This is what I was reporting - maybe a related or a different bug in the WiFi sync code.
    A crash happens for me if WiFi connectivity has been enabled for a number of days, when I've initiated a sync a few times a day over a couple of weeks, or so, until it fails & crashes in a similar manner to yours...

  • 0 in reply to 3606904

    Do you have a video you can upload on your next reply showing it crashes without being plugged in? So far, I cannot reproduce a crash while plugged in or using a shortcut or while not plugged in and going through the glances on software version 25.04. 

  • 0 in reply to Garmin-Hannah

    Not easily, Garmin-Hannah - it doesn't do it 'on command'. I'd have to video each attempted sync until it fails, but I'll give it a go - it just may take a few weeks....

    For clarity, I don't go through glances. I enable WiFI by holding the Up button, then select Connectivity > Wi-Fi > Status On,  and leave it on. (auto upload is off) When I want to sync, I follow the instructions in the manual:

    1. Hold LIGHT to view the controls menu
    2. Select Sync

    This process works fine for a number of days, but after 2 weeks or so, it'll start syncing as it has successfully previously, but then fail/crash. (I don't leave bluetooth enabled, as I get better battery life using WiFI for sync)

    I'll let it run for a number of days & see if I can get a vid of it crashing. (no promises)

  • 0

    Well, after all this time, it did it again... I leave Connectivity | Wi-Fi enabled on my 965, and use it to sync the watch after a virtual bike ride using the Tacx app. It has been working fine, so I figured that a fix had made it into a fw release between reporting the problem & now. Then, today, my 965 wouldn't/couldn't connect to the WiFi, despite everything else on the network being happy. On the 2nd or 3rd attempt at trying to connect to the Wi-Fi it crashed & restarted... Since the battery was down to 20%, and it had just crashed, I did the long press power off, and plugged the 965 into the laptop to turn it on again & charge it. Everything appeared ok in Express with syncing but, unusually, the 965 restarted itself yet again when I unplugged it - normally it just (re)loads the maps & is ready. At this point the Connect app on my phone seemed to have received the virtual ride activity, and my training status along with sleep score, etc.

    After this things took another weird turn: syncing via BlueTooth & the Connect app on my phone, just to be sure, the watch & app have contrived to lose my training status - the activity is there, but Training says No Status with no VO2 Max trend, and it's lost my Endurance score as if I've done nothing recently... I've been working out about 5 days a week since mid Jan, and thought all of this would be in the cloud to resync via the Connect app, if necessary, just as it had done via Express, but something has got badly messed up somewhere.

    Any advice appreciated & welcomed, because I'm beyond disappointed at the Garmin/Express/Connect experience right now!