If you got disconnected from the battle, first of all, check your internet connection.
You can also check your ping to Amsterdam or Singapore, depending on what server you are playing. Remember that it shouldn't be higher than 300 ms.
We recommend you to get acquainted with the minimal system requirements for our game. If your device suits system requirement and your ping doesn't exceed the maximum level of threshold, please, contact technical support.
Don't forget to write ID of the battle where error occurred.