Hello Mar,
Good day. Thank you for your question.
Please try the possible solutions as mentioned here -
https://wiki.teltonika-gps.com/view/Teltonika_DualCam#Possible_solutions
If it does not help, please take the log files and reach out to us via VIP Helpdesk or contact your Sales Manager/Distributor. If you don't have any contacts with our Sales managers, please contact them on our official website
https://teltonika-gps.com/ and click on the "Contact Us" button. When you will click, please fill out the form and submit it. Note: as a topic, please choose "Vehicle telematics" or you can send an e-mail with the description of your situation to info@teltonika.lt
Thank you in advance.
Kind regards.