There's a problem with the connection to the Battle.net servers.

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Troubleshooting for problems installing or patching the Heroes of the Storm game client

Troubleshooting steps for connection issues in Heroes of the Storm.

What to do if the security code sent to your mail or SMS is not allowing you to authenticate your account

How to attach an Authenticator to your Battle.net account

How to submit a Heroes of the Storm bug report

A community site or app throws a 404 error when attempting to login via B.net or when accessing your Battle.net data.

A disk error occurred while loading a file required to log in.

Failed to download a required update. Please check your internet connection and try again.