If you are experiencing connection issues in Multiplayer, try the following procedure:

- Close the app and relaunch it.
- Power off and restart your device.
- Check that your device storage is not full. Make sure you have several GB available.
- Try an alternate connection method. From now on, you may also use a 3G/4G connection, so try switching between different connection types (Wi-Fi, 3G or 4G).