Board Thread:Questions and Answers/@comment-34779323-20180419093201/@comment-32811455-20180423112827

Check the signal anyway because at times these modern Wi-Fi routers/modems from the cable company suck. Assuming that's not the issue though...

Reboot your phone/tablet.

Failing that, uninstall the game, reboot phone, download & reinstall the game. It'll have to download a lot of files the first time you load up, but everything should definitely work after that.

Good luck.