Traccar Client Speed

Hi,

I've tried to send data from Traccar client'Android App' to the server, everything is OK, but the speed,altitude and course shown on the server are zero all the time, what can be the problem of that?

The mobile ID is registered and everything is OK except those three.

Thanks

Most likely you are using network location provider. It doesn't return speed, altitude and course.

I used Mixed provider, now i am using GPS provider, they are still the same!

Are you sure it's new data? Not the one before you switched provider?