This error message appears while logging in to the game with the message that the player was disconnected from the server.
Information on resetting your network devices.
Something went wrong while trying to download a file. Please try again.
Troubleshooting steps for latency problems in Diablo III
Troubleshooting steps for disconnection issues when playing Diablo III.
Information on linking your Twitch or YouTube account to your Battle.net account.
How to resolve this problem when downloading an update
Information and troubleshooting on error BLZBNTBNA000009C8
The request has timed out. There was an error switching heroes.