Please try these steps; they usually help to resolve most connectivity problems:

- Make sure your Wi-Fi network is stable and password-protected.
- Close any background apps.
- Power off your device for a couple of minutes.
If the steps above don't help, reinstall the game completely (to ensure that your progress remain safe, please make sure that you connected your profile to a social network in Game settings: Player Profile >> Settings >> Sign In).
If you experience difficulties, please contact our customer support below.