Ereke Hello!
Additionally, if you configured the tracker on the DNS server format, then please try to configure it on the IP format. You can see more details here https://forum.gps-trace.com/d/586-ip-and-dns-server-formats-in-the-application
Also, please check that you have correctly configured the APN on the tracker, and that everything is fine with the SIM card or chip that you use with the tracker, that there are enough funds and that the data transfer limits are not exceeded.
