Loading (sign out) problem

Unfortunately I have a new problem. I have got an LTE for my mobile and everything runs ok as long as I log into the app when I am connected on my wifi. However when I try to log in while being on the LTE I get stuck on the loading screen with the sign out button. When I click it, it gets me on screen where you between signing in with your google account and the pokemon trainer account. When I choose google account I get stuck on another loading screen. And when I dont click the sign out button nothing happens aswell. Is there someone who knows what is wrong and how to fix it? Thank you for your ideas.

Solution 1:

I had same problem. In the settings, in the "datatraffic" the google services backgroung data using is disabled. (After install I disabled everything except Pokémon Go). After being enabled, it does not stuck at sign out phase. I hope it helps for you.