RutX11 GPS Problems

Networking Solutions Issue
1

My RutX11 with latest stable firmware is intermittently experiencing a GPS problem where the current location is no longer determined correctly.

The error cannot be resolved without a reboot.

Interestingly, the supposed fix time displayed in the GUI is always at 2038. At that moment, the GPS module seems to freeze, and a reboot is needed.

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3

This morning again…

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4

Incidentally, the “Update location” button also has no effect in this case.

5

I have tried the following so far:

  1. Deactivating GPS synchronization in …/Date & Time/General
  2. NTP client synchronization now every 3600 seconds
  3. Deactivating GLONASS and BeiDou NMEA support

So far, the problem has not recurred, though I do not know which of these options resolved the issue or what the root cause is. (GPS-Spoofing?)

6

Greetings, @n-wo,

Thank you for reaching out to us.

Before we proceed, could you please provide the following information:

  1. Is your device is running the following firmware version RUTX_R_00.07.22.3?
  2. Are you using a Teltonika-supplied GNSS antenna or a third-party antenna? If it is a third-party antenna, could you please specify the brand and model?
  3. Where is the router deployed? Is it installed in a fixed location, or is it used in a moving environment?

The fact that the time locks specifically onto year 2038 typically points to data-parsing crash within GPS/NTP service.

Recent RutOS firmware updates specifically address a segmentation fault in the NTP GPS service after configuration updates, as well as incorrect date formatting in the GPS input plugin. Your workaround of disabling GLONASS and BeiDou strongly implies that the multi-constellation NMEA stream was triggering this exact formatting/parsing loop bug, causing to freeze and preventing the “Update location” button from working.

We would recommend updating the Firmware to RUTX_R_00.07.23 or newer and see if the issue persists with Galileo, Glonass and BeiDou NMEA support turned on.

Best regards,
Povilas

7
  1. yes
  2. antenna model: Dietz Dachantenne 4xLTE/ 5G/ 3xWLAN / GPS (DZ-ANT1030).
  3. installed in 2024 on the roof of the transporter, functioning reliably the entire time

I tried last beta fw too, without success. Than downgraded to current fw with options mentioned above. No issues since than