When creating a unit in the settings, please select:
Device Category - HARDWARE
Device Type - Coban GPS102
In the ID field enter the tracker IMEI.
After that, please configure the tracker to the server and port specified in the unit settings. If the tracker does not work with DNS server format, then please try setting up the tracker on the IP server format.
You can read more about it here https://forum.gps-trace.com/d/586-ip-and-dns-server-formats-in-the-application
Also, please do not forget to configure the timezone 0 (UTC) on the tracker regardless of your location, as well as the APN settings in accordance with the data of the operator of the SIM card or chip that you use with the tracker.