Battle.net Blizzard Error Code BLZBNTAGT00001324: How to Fix It

Easy 15-30 minutes Medium Severity Verified June 2026
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Error Code
BLZBNTAGT00001324
Brand
Battle.net Blizzard
Product Type
game_launcher
Severity
Medium
DIY Difficulty
Easy
Estimated Fix Time
15-30 minutes
Error code BLZBNTAGT00001324 means the Battle.net desktop app is unable to reach Blizzard's update servers, which prevents your games from downloading patches or launching correctly. This typically happens due to a blocked network connection, overly aggressive firewall or antivirus settings, a corrupted Battle.net agent process, or a temporary issue on Blizzard's end. The good news is that most cases can be resolved in a few minutes with some basic network and software troubleshooting steps.
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Tools You'll Need

How to Fix Error Code BLZBNTAGT00001324

  1. Check Blizzard's Server Status

  2. Restart the Battle.net App and Your Computer

  3. Flush DNS Cache and Renew Your IP Address

    Running these commands is safe, but your internet connection will briefly disconnect during 'ipconfig /release'. This is normal.

  4. Temporarily Disable Your Antivirus and Firewall

    Only disable your antivirus and firewall briefly for testing purposes. Re-enable them immediately after testing, and add proper exceptions rather than leaving protection off.

  5. Allow Battle.net Through Windows Firewall

  6. Change Your DNS Server to a Public DNS

  7. Delete the Battle.net Agent Cache Folder

    Do not delete files outside of the Agent folder. Deleting game files in other directories may require you to reinstall those games.

  8. Reinstall the Battle.net App

    Before uninstalling, note the install paths of all your Blizzard games so you can relink them without re-downloading.
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When to Call a Professional

Contact Blizzard Support directly at https://us.battle.net/support/en/help if the error persists after completing all steps, as it may indicate an account-level block, an ISP-level restriction, or a backend issue on Blizzard's servers that only their team can resolve. If your home network has a managed firewall or you are on a corporate, school, or university network, contact your network administrator — many institutional networks block gaming update servers by policy.

Frequently Asked Questions

What does Battle.net error BLZBNTAGT00001324 mean?
Error BLZBNTAGT00001324 means the Battle.net desktop app's Agent process cannot establish a connection to Blizzard's update servers. This prevents the app from checking for updates, downloading patches, or verifying game files. It is usually caused by a firewall block, antivirus interference, corrupted agent cache, or a DNS issue.
Is error BLZBNTAGT00001324 caused by Blizzard's servers being down?
It can be. Always check the Blizzard server status page or their @BlizzardCS Twitter account first. If there is an active outage or scheduled maintenance, you just need to wait. If servers are reported as online, the problem is local to your network or computer.
Will reinstalling Battle.net delete my games?
No. Uninstalling and reinstalling the Battle.net launcher does not delete your installed game files, as long as those games are installed in a separate folder (which is the default). After reinstalling Battle.net, you may need to browse to your existing game installation folders and click 'Locate Game' inside the app to relink them without re-downloading.
Why does my antivirus keep blocking Battle.net?
Some antivirus programs flag the Battle.net Agent process because it runs in the background, makes frequent outbound connections, and updates itself automatically — behaviors that can look suspicious to heuristic scanners. The solution is not to disable your antivirus permanently, but to add Battle.net.exe and Agent.exe as trusted exceptions or exclusions within your security software settings.
Can a VPN cause error BLZBNTAGT00001324?
Yes. VPNs can route your traffic through servers that are geographically blocked or throttled by Blizzard, or they can interfere with DNS resolution used by the Battle.net agent. Try disconnecting your VPN entirely and launching Battle.net without it. If the error goes away, your VPN is the cause, and you will need to either disable it while gaming or configure a split-tunnel rule to exclude Battle.net traffic.

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