Hello Trfdvb
Thanks for your question!
In this case, it’s better to contact the device manufacturer directly.
Such problems may be associated with either incorrect installation of the device (the device may be located in a place where communication is periodically unavailable) or a malfunction of the device.
If you’re using our apps, you can write to us at support@gps-trace.com, specifying unit ID, then we can check for device data additionally and probably try to help somehow.
