Hello
Thank you for your question.
It can be fixed via Firmware Updater.
Update firmware to latest using Firmware Updater.
If you don't have this one, to receive updater, please contact your sales manager.
If you don't have any contacts with our Sale managers, please contact with them on our official website https://teltonika-iot-group.com/
and click on "Contact Us" button. When you will click, please fill the form and submit it.
Best regards,
Teltonika Support