Hello,
I'm sorry to hear that you are experiencing issues!
Could you please update the device to the latest firmware, then navigate to System → Administration → Troubleshoot and generate a troubleshoot file. This file can be attached to the original post and will only be visible to Teltonika moderators. I will use it to replicate your setup and see if I can replicate the issues you are describing.
Thank you!
Best regards,
DaumantasG