I play the game on a Samsung Galaxy S9+ and my provider is T-mobile. The guild I am a member of can go through Hpit and HAAT pretty quickly and normally I play on APM until a half hour, after the start of the raid, to post damage.
My issue is that when I turn off APM, it will not reconnect me to the game and I am forced to close the app and lose all of my scoring. Maybe 20% of the time, and only in Hpit, I am able to turn off my wifi and it will reconnect through 4G.
I have tried uninstalling and reinstalling the game to no avail.
I have had this same phone for, maybe, 6 months and it has only been the last few weeks that this has happened. My wife uses a Galaxy S9 and has had none of the problems I have described.
Can anyone offer any suggestions? Other than ditching this game? LOL!