WOW 51900 Error 319 Fix | WOW51900319 Disconnected from Server

Error 51900319 (officially WOW51900319) is a general “disconnected from server” error. The WOW51900 Error or Error 319 in World of Warcraft typically indicates issues with connecting to Blizzard’s servers, often due to server issues, connection problems, or corrupt game files.

Here are some common fixes for this error:

1. Check Blizzard Server Status

• Sometimes the issue may be on Blizzard’s end. Check Blizzard’s official Battle.net server status page or their Twitter for any ongoing maintenance or outages.

2. Restart the Game and PC

• Simply restarting both the World of Warcraft client and your PC can sometimes resolve temporary connection issues. Make sure to close the game completely before restarting your system.

3. Run Battle.net and World of Warcraft as Administrator

• Right-click on both the Battle.net Launcher and World of Warcraft shortcuts, and select Run as administrator. This can help if the error is related to insufficient permissions.

4. Check Your Internet Connection

• A weak or unstable internet connection can cause this error. Try the following:

  • Restart your router or modem.

  • Switch from Wi-Fi to a wired Ethernet connection, which is more stable.

  • Run a speed test to make sure you have a solid connection (you need at least 3 Mbps for decent gameplay).

5. Clear Battle.net Cache

• The Battle.net Launcher caches data that can sometimes get corrupted. To clear it:

  1. Close the Battle.net Launcher.

  2. Go to the following folder on your PC:
     C:\ProgramData\Battle.net\Cache.

  3. Delete all files in this folder.

  4. Restart the Battle.net Launcher and try again.

6. Repair World of Warcraft Files

• Corrupted game files can cause connection issues. To repair them:

  1. Open the Battle.net Launcher.

  2. Click on World of Warcraft in your game library.

  3. Click the Options button (the gear icon), and select Scan and Repair.

  4. Let the tool check and repair your game files. This could take some time.

7. Disable Security Software Temporarily

• Sometimes your antivirus or firewall can block connections to Blizzard’s servers. Try disabling them temporarily and see if it fixes the error.

  • Windows Firewall: Go to Control Panel > System and Security > Windows Defender Firewall and disable it temporarily.

  • Antivirus: Disable it temporarily, but make sure to turn it back on after testing.

8. Change DNS Settings

• Sometimes, the DNS server provided by your ISP (Internet Service Provider) can cause connection issues. Try switching to Google DNS or Cloudflare DNS:

  • Google DNS:
    Primary: 8.8.8.8
    Secondary: 8.8.4.4

  • Cloudflare DNS:
    Primary: 1.1.1.1
    Secondary: 1.0.0.1

  To change your DNS:

  • Open Control Panel > Network and Sharing Center.

  • Click on Change adapter settings.

  • Right-click on your active connection and select Properties.

  • Select Internet Protocol Version 4 (TCP/IPv4) and click Properties.

  • Choose Use the following DNS server addresses, then enter the values above.

9. Reset Network Settings

• If there’s an issue with your network configuration, resetting it could help.

  1. Open Command Prompt as Administrator (search for “cmd” in the Start menu, right-click, and select Run as administrator).

  2. Type the following commands and hit Enter after each:

     ipconfig /flushdns
netsh winsock reset
netsh int ip reset


  3. Restart your computer.

10. Reinstall Battle.net and World of Warcraft

• As a last resort, you may need to uninstall and reinstall both the Battle.net Launcher and World of Warcraft:

  • Uninstall the Battle.net Launcher and World of Warcraft through Control Panel or Settings > Apps.

  • Download and reinstall the Battle.net Launcher from the official website and then reinstall World of Warcraft.

11. Check for Background Applications

• Certain apps (especially other games, VPNs, or download managers) can interfere with the connection to Blizzard’s servers. Try closing unnecessary applications running in the background, especially any VPNs or proxies, which could be causing routing issues.