Updated: 1 year ago
Article ID: 12986

Common Problems

Data transfer error. will automatically try to download the data again.

There is something blocking the download of necessary game data. The desktop application will try again automatically. If the download keeps failing, try the troubleshooting steps below.

  1. If you're using a wireless connection, optimize your internet connection to rule out a connection issue.
  2. Reset your network devices to make sure your router hasn't become flooded with data.
  3. Update your drivers and operating system to resolve any compatibility issues.
  4. Try creating a new administrator account to resolve permissions issues.
Advanced Troubleshooting
  1. Configure your security software's exception list to allow Blizzard applications to run.
  2. Check your network configuration to find any issues with your firewall, router, or port settings.

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.