index 2 constant network error when updating body comp.

I am having a constant issue with the index scale not adjusting body fat. it says network error every time I attempt to adjust the body fat. Why is there a constant issue with an expensive smart scale? I have tried to use both the web page and the mobile app to make it do what it is supposed to AS A BASIC FUNCTION OF THE DEVICE. Yet every time there is an issue, the user should not have to factory reset a device for it to do its PROGRAMMED FUNCTION.