Freematics Forum

Try increasing RECV_BUF_SIZE in FreematicsNetwork.h.

Thanks for sharing this. I will include this code snippet in the code base if you don't mind.

From what we observed, a local sim card is more quickly allowed to register into the network than a roaming hologram sim card. But once it is allowed in, it gets connected fairly quickly every time. This seems to vary among operators though.

Tello uses B2/B4/B12 which are all supported by SIM7600A-H.
Is the APN correct? If unsure, try leaving APN blank (default from network).

1. Try keeping device searching for a longer time (first time use of a new SIM card may take longer).
2. Try powering device from OBD instead of USB.

GPS/GNSS is not dependent on cellular network.

Thanks for sharing the tip.

Is your OBD port very inside? Device needs to be exposed to sky. Otherwise, external GNSS receiver is recommended.

Try leaving APN blank if using Freematics Builder or setting APN to "" in config.h

Not very sure but can you check the raw data that traccar received?