Login Xbox Live

Trying to start the Xbox Live account yields 2 results

With wi-fi: A "Connection error" message appears

With mobile data connection: The account starts normally, but doesn't allow a friend's game to enter, nor does it allow users to be invited to the current game, despite the fact that the option "use cellular data" is active

And tried to clear app data as well as cache, in addition to uninstalling and reinstalling the app