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Forerunner 955 - GPS Signal Loss and Incorrect Track Recording

5898092
4 days ago

Hi,
I’m using Forerunner 955 and I’ve been experiencing persistent GPS issues during my runs.
The watch often loses gps signal and the recorded track are incredible inaccurate.
During today's run the watch added over extra 4 km.
I’ve tried different GPS modes, but the issue still occurs.
My husband usually runs next to me with Forerunner 945 and his GPS track is perfectly accurate.
My watch is updated with the latest firmware.
Is there a way to resolve this problem?

Thanks in advance!

Here is my today's track with additional 4 km

  • 0 4 days ago

    Fix the world's politics. This looks like GPS jamming to me. Sorry!

    Is your watch set to use multiband and multiple GNSS networks, or just GPS only?

  • 0 4 days ago in reply to nowster

    But it works for forerunner 945. I have problems only with forerunner 955
    Now I am using All + Multi-Band, but I tried all options(GPS only, multiple GNSS and so on)

    With forerunner 945 using GPS+ Glonass always gives stable and accurate results, I’ve never had any GPS issues with it. However, with my Forerunner 955, GPS errors occur in about 90% of my runs.
    I’ve already found online that 955 doesn't have GPS+Glonass

  • 0 4 days ago in reply to 5898092

    955 has All Systems, which combines GPS, GLONASS, Galileo, QZSS (Japan and East Pacific) and Beidou.

  • 0 4 days ago in reply to nowster

    In multi-band mode (GPS + GLONASS + Galileo), I’m experiencing the issues I described above.
    With the Forerunner 945 in GPS + GLONASS mode, this problem does not occur.
    It seems that Galileo is not improving accuracy in my case, it’s actually making things worse.
    Is there any way to use only GPS + GLONASS on the Forerunner 955, like it’s possible on the 945?

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