We had a unit (RUT240 - firmware below) returned to us as it was not connecting to Mobile network, (note: customer did not have login credentials and therefore could not make changes which may cause problem). We Logging in - it seemed to have all correct Mobile config, and settings. However Mobile Connection Status page remained totally blank with no error messages. I have not seen this before.
We then did a factory reset and reloaded configuration profile. It connected immediately to the mobile network and on the bench has been stable for 2 days.
Can you offer any insight to this occurrance? Could this be a hardware issue? can the unit be safetly redeployed into the field?
Teltonika RUT240 LTE
Firmware version RUT2XX_R_00.01.14.5
Kernel version 3.18.44
Bootloader version 3.2.2