Always have the server connection error. Every single time launch the game, that error prompts up. Connected to mobile data, home WiFi and even high speed broadband, error connecting to server is one major setback with this app. Game play is good and fun with all the trainings and modes. It's frustrating whenever can't connect to the game and even worse the server connection will be down while playing in mid game. Hope they fix that and provide a good update in nearest time.