Currently there is a glitch that is prohibiting T-Mobile users from connecting to the game unless you are on wifi. For the last several days that rules out alot of time I can access the game, on top of the fact there is an event running that relies on repeated logins to be able to play and earn credits towards said event... So you're S.O.L if you're say at work, and cannot connect to wifi. So a good half of my day I cannot even play the game...Not a good look for a "mobile" game...