BLZBNTBTS0000D

Updated: 5 months ago
Article ID: 28490
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Common Problems

Failed to update the Blizzard Launcher. Please check your internet connection and try again.​
BLZBNTBTS0000D

This error occurs when an unstable wireless connection or an incorrect network setting prevents your computer from connecting to our servers. Follow the steps below to resolve the issue.

  1. If you're using a wireless connection, optimize your internet connection to rule out a connection issue.
  2. Disable any proxies that may interfere with the login module.
  3. Release and renew your IP and flush your DNS to resolve any network conflicts.
  4. Reset your network devices to make sure your router hasn't become flooded with data.
  5. Try closing background applications to resolve any software conflicts.

Tried everything here?

If you have tried these steps and still require assistance, visit our Technical Support Forums (World of Warcraft) (StarCraft II) (Diablo III) (Hearthstone) (Heroes of the Storm) (Overwatch) or contact us.