Additional factors like corrupted DNS records, VPN interference, or a damaged Battle.net installation can also disrupt the client’s ability to establish a secure handshake. Since this issue originates from your local environment, it can usually be resolved by adjusting your security settings, refreshing your network configuration, or repairing the Battle.net client. Follow the steps below in sequence to identify and resolve the source of the error.
1. Uninstall or Disable Antivirus (Temporarily)
Antivirus software can mistakenly flag Battle.net files as malicious, causing connection failures and triggering this error. Temporarily disabling your antivirus helps determine if it’s the cause. If the problem is resolved after disabling the antivirus, you should whitelist the game in your antivirus settings by following these steps:
2. Flush DNS / Reset Network Settings
If your DNS records or network configuration are outdated or corrupted, it can prevent the Battle.net client from connecting properly. Flushing your DNS and resetting your network stack will clear any problematic entries.
Steps to Flush DNS:
Steps to Reset Network Settings:
If the error persists after completing the steps above, reinstalling the Battle.net client may be necessary. A clean installation removes corrupted files and restores all default configurations, helping the client reconnect to Blizzard’s servers without issues.
