Good afternoon,
I am sorry to hear your device shows offline in the RMS system. Here are a few troubleshoot steps that should assist:
Please and install the newest firmware version for the device, as the firmware version you have is older. Until you do so, further troubleshoot may not work, however i am still advising you of the steps.
Check this guide, which covers majority of basic RMS connection issues : Why is my device offline / not activated on RMS? - Teltonika Networks Wiki
Check if you can see any message near the “Status” icon in Devices tab in RMS, next to the device in question.
If the device has an exclamation mark with an error message, and it states that service is disabled, please enable the service under Administration → Companies → View company details and if credits are available, please toggle the service on.
Please also advise if you have any remaining credits in RMS → Companies → View company details.
Regards,
Arturas