Is to factory reset the phone then setup the APN again. It's very important to not install apps while you figure out if the phone does or does not have a problem.
(APN, setup and such is on the web so I rarely write much about that.)
I just received a ZTE AXON7. I have only had Nexus 5 and 5X phones. Why am I having such difficulty using this new phone? I want to like it, however using android on my nexus phones was very simple It is so challenging on the Axon7. I'm thinking of returning this and paying the extra 150 bucks for the Nexus6P. Can the community offer some suggestions? I've read android authority articles on problems with the phone but nothing is about my issues of basic use of the phone. This is supposed to be a good phone and I am not totally ignorant or stupid in using a smartphone. What seems to be wrong here.