Unravelling the Mystery of World of Warcraft Error 51900118: Causes and Fixes

As a passionate gamer, I’ve spent countless hours immersed in the captivating world of World of Warcraft. There’s nothing quite like embarking on epic quests, teaming up with friends, and experiencing the thrill of battle. However, every gamer knows that even the most seamless gaming experiences can encounter unexpected hurdles. One such hurdle is the infamous “World of Warcraft Wow 51900118 Error,” a frustrating occurrence that has left many players scratching their heads. I vividly recall the sinking feeling that accompanied this error message flashing across my screen, abruptly interrupting my gaming session. It was a moment of confusion and disappointment, but fear not, for there is a way to overcome this setback and get back to exploring Azeroth. To help fellow gamers facing this predicament, here are the steps to take in order to triumph over the Wow 51900118 Error and resume your adventures in this enchanting virtual realm.

Understanding the World of Warcraft 51900118 Error

Let’s start by understanding what the WoW 51900118 error is. This error usually pops up when your game client is unable to maintain a steady connection with the WoW servers. It’s a common issue among players worldwide, and it can be quite disruptive to your gaming experience.

Wow 51900118 Error

Why Does the 51900118 Error Occur?

There are a few reasons why the WoW 51900118 error might occur.

  1. Unstable Internet Connection
    An unstable or weak internet connection is the most common cause of the 51900118 error. The game needs a steady connection to function optimally.
  2. Server Overload
    Another reason could be server overload. If there are too many players on a server, it might struggle to handle the load, causing disconnections.
  3. Outdated Game Files
    Outdated or corrupted game files might also cause this error. Keeping your game updated ensures smooth gameplay.

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How to Fix World of Warcraft 51900118 Error?

Thankfully, fixing the 51900118 error is quite straightforward. Follow these steps:

Fix 1: Checking and Improving Your Internet Connection

To resolve the WoW 51900118 error, your first point of action should be to check your internet connection. Here’s a detailed step-by-step guide:

Step 1: Test Your Internet Speed

Use an online tool like Speedtest.net or Fast.com. These platforms provide information about your current download and upload speeds. WoW requires a stable and fast internet connection for optimal gameplay.

Step 2: Compare Results With WoW Requirements

Compare your internet speed results with the requirements stated by WoW. As of 2023, the recommended speed for WoW is 5 Mbps for download and upload. If your speed is lower, this could be causing the 51900118 error.

Step 3: Improve Your Connection

If your speed doesn’t meet the recommendations, consider steps to improve it. You might need to upgrade your internet plan. Alternatively, closing bandwidth-heavy applications while playing can free up some speed for WoW.

Step 4: Use a Wired Connection

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Switching to a wired connection can also help. Wired connections tend to be more stable and faster than wireless ones. If possible, connect your gaming device directly to your router using an Ethernet cable.

Step 5: Restart Your Router

If your internet speed meets the recommendations, but you’re still facing the 51900118 error, try restarting your router. Unplug it, wait for a minute, then plug it back in. This can often resolve minor connectivity issues.

Remember, the WoW 51900118 error is primarily a connection issue. By ensuring your internet connection is robust and stable, you’re likely to resolve this error and enjoy a smoother gaming experience.

Fix 2: Updating and Repairing Your Game Files

Outdated or corrupted game files can also cause the World of Warcraft 51900118 error. Here’s how to update and repair your game files:

Step 1: Update Your Game

Before you dive into repairing game files, ensure your game is up-to-date. Open your Battle.net client, select World of Warcraft from your games list, and click ‘Update’ if the option is available.

Step 2: Run the Repair Tool

If your game is updated but the error persists, run the repair tool. In the Battle.net client, click on ‘Options’ under the WoW logo, and select ‘Scan and Repair’. This tool will automatically fix any corrupted or missing files.

Step 3: Clear Your Cache

Sometimes, outdated cache files can cause issues. To clear your cache, close the Battle.net client and navigate to your WoW installation folder. Inside, find the ‘Cache’ folder and delete it. Don’t worry, WoW will recreate this folder with up-to-date files the next time you launch the game.

Step 4: Update Your Graphics Driver

An outdated graphics driver can also cause connection errors. Ensure you have the latest graphics driver installed. Visit your graphics card manufacturer’s website, find your specific model, and download any available updates.

Step 5: Restart Your Computer

After completing these steps, restart your computer. This can often clear out any lingering issues and refresh your system.

By updating and repairing your game files, you not only have a good chance of fixing the 51900118 error but also of improving your overall game performance.

Fix 3: Troubleshooting Network Devices and Firewall Settings

Your network devices and firewall settings may be causing the WoW 51900118 error. Here’s how to troubleshoot these potential issues:

Step 1: Power Cycle Your Network Devices

Power cycling your modem and router can help resolve connection issues. Unplug your modem and router, wait for 30 seconds, and then plug them back in. This resets your devices and could potentially fix the error.

Step 2: Check Firewall Settings

Ensure that your firewall isn’t blocking WoW or the Battle.net client. Open your firewall settings and look for exceptions or allowed applications. Add both the Battle.net client and WoW executable files to the list if they aren’t already present.

Step 3: Disable VPN or Proxy

If you’re using a VPN or proxy, it might be interfering with your connection to WoW servers. Disable your VPN or proxy temporarily and check if the error persists. If disabling it resolves the issue, consider using a different VPN or proxy service.

Fix 4: Contacting Blizzard Support and Server Status Check

If none of the previous fixes have resolved the WoW 51900118 error, consider contacting Blizzard Support or checking the server status.

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Step 1: Check Server Status

Before contacting support, check the server status to see if there’s a known issue. You can find server status information on the official WoW forums or third-party sites like downdetector.com. If there’s a widespread issue, it’s likely that Blizzard is already working on a fix.

Step 2: Contact Blizzard Support

If the server status is normal but the error still persists, contact Blizzard Support. You can reach them through the Battle.net client or the official website. Provide as much information as possible, including the steps you’ve already tried to resolve the error. The support team can help you identify and fix the problem.

Fix 5: Temporarily Disable Your Antivirus Software

Antivirus software can sometimes interfere with World of Warcraft and cause the 51900118 error. Here’s how you can tackle this:

  • Step 1: Disable Antivirus Software: Temporarily disable your antivirus software. Each software has a different process, so consult your antivirus software manual or online guide.
  • Step 2: Run WoW: Once disabled, try running WoW. If the error disappears, it’s likely your antivirus was causing the issue.
  • Step 3: Add WoW to Trusted Programs: To continue playing WoW without disabling your antivirus, add WoW to your antivirus’ list of trusted programs. Again, consult your antivirus manual or online guide for specific steps.

Fix 6: Reinstall World of Warcraft

If all else fails, you may need to reinstall WoW. Here’s how:

  • Step 1: Uninstall WoW: Open your Battle.net client, select World of Warcraft, click on ‘Options’ and choose ‘Uninstall Game’. Follow the prompts to complete the process.
  • Step 2: Restart Your Computer: After uninstalling, restart your computer to clear any remaining game files.
  • Step 3: Reinstall WoW: Open your Battle.net client, select World of Warcraft, and click on ‘Install’. Follow the instructions to complete the installation. Once installed, check if the 51900118 error still persists.

Fix 7: Flushing DNS and Renewing IP

Flushing DNS and renewing your IP address can sometimes help with the 51900118 error. Here’s the step-by-step guide:

  • Step 1: Open Command Prompt: On your computer, open the command prompt. You can do this by searching ‘cmd’ in your start menu.
  • Step 2: Flush DNS: In the command prompt, type ‘ipconfig /flushdns’ and hit Enter. This will flush your DNS.
  • Step 3: Renew IP: Next, type ‘ipconfig /renew’ in the command prompt and hit Enter. This will renew your IP address.
  • Step 4: Restart Your Computer: After executing these commands, restart your computer and check if the WoW 51900118 error is resolved.

Fix 8: Change DNS Server

Sometimes, changing your DNS server to a public DNS can help resolve the 51900118 error. Here’s how:

Step 1: Open Network Settings

On your computer, open your network settings. You can do this by searching ‘network’ in your start menu and selecting ‘Network & Internet settings’.

Step 2: Change Adapter Options

Inside network settings, click on ‘Change adapter options’. This will open a window displaying all network connections.

Step 3: Adjust IPv4 Settings

Right-click on your active network connection, select ‘Properties’, find ‘Internet Protocol Version 4 (TCP/IPv4)’, and click ‘Properties’ again.

Step 4: Use Public DNS

In the new window, select ‘Use the following DNS server addresses’ and input the Google Public DNS addresses: for the Preferred DNS server and for the Alternate DNS server. Click ‘OK’ to save changes.

Step 5: Restart Your Computer

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Finally, restart your computer and check if the error is resolved. This change will help your system to connect with WoW servers better, potentially resolving the 51900118 error. By following these steps, you should be able to troubleshoot and resolve the World of Warcraft 51900118 error effectively. Whether it’s a network issue, game file error, or firewall and antivirus interference, there’s a solution for you. Happy gaming!


The WoW 51900118 error, though frustrating, is fixable. Various methods, from checking your internet connection to reinstalling the game, can help. Regularly updating your game files, adjusting firewall and antivirus settings, and maintaining a stable network connection can prevent such errors. If problems persist, Blizzard Support is always there to assist. Remember, every problem has a solution. Keep this guide handy, and happy gaming!


What is the WoW 51900118 error?

It’s a common error indicating that your game client can’t maintain a stable connection with WoW servers.

Why am I seeing the 51900118 error in WoW?

This error can be due to unstable internet, server overload, or outdated/corrupted game files.

How can I fix the WoW 51900118 error?

Try solutions like checking your internet connection, updating game files, adjusting firewall settings, or contacting Blizzard Support.

Could my internet connection cause the 51900118 error?

Yes, a weak or unstable internet connection is a common cause of this error.

Can server overload trigger the 51900118 error?

Absolutely! If too many players are on a server, it might not handle the load, leading to this error.

Will updating game files resolve the 51900118 error?

Often, yes. Outdated or corrupted game files can cause this error, so keeping your game updated is crucial.

How does flushing DNS and renewing IP help?

These steps refresh your internet connection, which can help resolve connection-related issues like the 51900118 error.

Why should I change my DNS server to fix the 51900118 error?

A public DNS often provides a more stable connection to WoW servers, helping resolve this error.

Will reinstalling WoW resolve the 51900118 error?

It might. If other solutions fail, reinstalling WoW can help by creating fresh game files.

What if the 51900118 error persists after trying all solutions?

If the error still occurs, it’s best to contact Blizzard Support for personalized assistance.