Battle.net Update Agent Troubleshooting

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The Battle.net Update Agent is responsible for updating and launching your Blizzard games. If the Battle.net Update Agent is not working properly you may encounter patch looping, an inactive Play button, or a patch getting stuck at Updating Setup Files. Follow the steps for your operating system below to resolve issues with the Battle.net Update Agent.

Windows

  1. The Battle.net Update Agent may not work with an outdated operating system. Update Windows.
  2. If you're using wireless internet, switch to a wired connection.
  3. Some advanced internet settings may prevent the Update Agent from connecting to our servers. Temporarily disable your proxy settings.
  4. Security software may interfere with the Battle.net Update Agent. Disable or temporarily uninstall any security programs.
  5. Programs running in the background can conflict with the Battle.net Update Agent. Try closing background applications.
  6. Windows Secondary Logon service must be enabled for Battle.net Update Agent to run. Ensure that the service is turned on.
Advanced Troubleshooting
  1. Ensure that your network is properly configured for Blizzard games and services.
  2. Agent may not have updated properly, which may cause other patching issues. Try manually updating Agent.
  3. Make sure that both your internet browser and Adobe Flash Player are up-to-date. Both can affect the Battle.net Update Agent's ability to properly connect.
  4. Malicious programs may interfere with the Battle.net Update Agent. Run a security scan to find and resolve any infections.
  5. File corruption with the Battle.net Update Agent itself may prevent it from working properly. Delete the Battle.net Tools folder to automatically recreate the necessary files.
  6. If the issue persists, uninstall the game (World of Warcraft) (StarCraft II) (Diablo III) and download a new copy of the installer from the Battle.net Game Downloads page.

Note: World of Warcraft addon manager clients can lock certain files that the Battle.net Update Agent needs. Disable or temporarily uninstall these programs, restart your computer, and try again.

Mac

  1. The Battle.net Update Agent may not work with an outdated operating system. Run Software Update.
  2. If you're using wireless internet, switch to a wired connection.
  3. Some advanced internet settings may prevent the Update Agent from connecting to our servers. Temporarily disable your proxy settings.
  4. Security software may interfere with the Battle.net Update Agent. Disable or temporarily uninstall any security programs.
  5. Programs running in the background can conflict with the Battle.net Update Agent. Try closing background applications.
  6. Changes to your Mac's permissions may prevent the game from running properly. Repair your disk permissions and reset the game folder's permission.
Advanced Troubleshooting
  1. Ensure that your network is properly configured for Blizzard games and services.
  2. Agent may not have updated properly, which may cause other patching issues. Try manually updating Agent.
  3. File corruption with the Battle.net Update Agent itself may prevent it from working properly. Delete the Battle.net Tools folder to automatically recreate the necessary files.
  4. If the issue persists, uninstall the game (World of Warcraft) (StarCraft II) (Diablo III) (Hearthstone) and download a new copy of the installer from the Battle.net Game Downloads page.

Note: World of Warcraft addon manager clients can lock certain files that the Battle.net Update Agent needs. Disable or temporarily uninstall these programs, restart your computer, and try again.

Tried Everything Here?

If you have tried all of the steps for your operating system and still require assistance, please visit our Technical Support Forum (World of Warcraft) (StarCraft II) (Diablo III) (Hearthstone) or contact us.

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