Hello, Rafal ,
The problem may be that you are using a 15 digit IMEI.
Please check info by this link, most likely it will help. – https://forum.gps-trace.com/d/340-how-to-connect-trackers-of-types-gt06-gt06n-gt02-gt02a-tk110-and-etc
Also, let me describe to you some steps that can you help you to get through:
Since trackers of different manufacturers and models work according to different protocols, it is difficult to say for sure whether your tracker corresponds to one of the protocols we support.
1) Please try to identify your tracker on id.wialon.net as one of the Concox devices.
2) If your tracker is determined, take a screenshot, write down the name of the model of the tracker and the identified ID (may coincide with the IMEI, may be part of it with zero or without).
3) After that, return to the application in the unit settings (unit menu - Settings - Common Settings), specify the determined model and ID. After that, configure the tracker on the defined server and port.
Regarding the server, you can also read more information here https://forum.gps-trace.com/d/586-ip-and-dns-server-formats-in-the-application
If this information did not help you, write to us at firstname.lastname@example.org.