Windows authentication fails on iOS when accessing an https URL on mobile-data/LTE

Windows authentication fails on iOS when accessing an https URL on mobile-data/LTE.

We are are trying to access a dot net web service with https URL and are not able to authenticate. It keeps on asking for username and password.

What we know:

- Works fine on http

- Works fine if connected to WiFi

- Any windows authenticated site on https does not work with mobile data but works fine with wifi

- Any windows authenticated site on https does not work with safari but works fine with Chrome on iOS