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This error is usually caused by an unstable internet connection or a third-party program that is blocking access.
Updated: 12 months ago
Article
Failed to download a required update. Please check your internet connection and try again.
Updated: 12 months ago
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What to do if you think another person or group of people has targeted a DDoS attack on you
Updated: 2 years ago
Article
Troubleshooting steps for disconnection problems with the Battle.net mobile app
Updated: 10 months ago
Article
Unexpected Blizzard Update Agent errors.
Updated: 2 years ago
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You have attempted to connect to an invalid server. If this problem persists, please contact Customer Support.
Updated: 3 years ago
Article
Information on error BLZBNTBGS00000026
Updated: 4 years ago
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Information on Error BLZBNTAGT00001399
Updated: 12 months ago
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Information on error BLZBNTBNA00001389
Updated: 2 years ago
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This error means the Battle.net Agent (the process that installs and patches our games) couldn't stream necessary files.
Updated: 12 months ago
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