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On the RUT240 the mobile data connection does not work reliable. Signal strength, SIM card ready, all is ok in the mobile overview, except 'Data connection state' which says 'disconnected'. The problem is intermittent, the problem does not always occur at boot. Powercycle or pressing the 'reboot modem' usually help, but this is not a workable solution.

According the the SIM card provider there is a working data connection while the Data connection state is 'disconnected'.

Diving into the system log, it seems there is no IP address. So when the modem boots and ends up disconnected the message is:

user.info Messaged[16278]: Start from new event "Mobile Data" "Mobile data connected: NL KPN Tele2 M2M"

If the modem gets a proper working internet connection:

user.info Messaged[19576]: Start from new event "Mobile Data" "Mobile data connected, IP: 10.153.231.125 NL KPN Tele2 M2M"

Firmware version: RUT2XX_R_00.01.14.4

Any help would be appreciated,

Thanks

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Did you try a FW installation via bootloader menu and also try using custom APN if your using Auto APN ?
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I use a custom APN. Firmware is the latest version (RUT2XX_R_00.01.14.4).

I did not upgrade via bootloader but via system->firmware->upgrade. Previous version was 01.14.0, so minor changes.
I assume this ends up with exactly the same software, right ?

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I use a custom APN. Firmware is the latest version (RUT2XX_R_00.01.14.4).

I did not upgrade via bootloader but via system->firmware->upgrade. Previous version was 01.14.0, so minor changes.
I assume this ends up with exactly the same software, right ?
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Hello,

Thank you for contacting us.
This issue could be related to the quality of the signal or modem module firmware.
I would like to ask, to recreate same issue, generate a troubleshoot file and provide it to us.
You could attach troubleshoot file with a comment. It will be visible only to Teltonika engineers.
Detailed instruction how to generate a troubleshoot file could be found in our wiki.
This file contain logs, which will help to answer what cause this issue.
Thank you in advance.

Best regards,

Sigitas