How to Fix World of Warcraft Error WOW51900314

Several gamers reported facing an issue “Error WOW51900314” when they were trying to log into their WoW account. If you are also getting such an error, this article is intended for you as this explains what causes this issue and how to fix it on Windows 11/10 PC. 

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This error comes into existence mostly when you are playing the classic version of the World of Warcraft game. When you face this issue, you might also receive an error message that resembles the following – 

We couldn’t log you in with what you just entered. Please try again. (WOW51900314)

Seeing the above message, it looks like this occurs because you had used incorrect login details. This is half-true as there are other reasons as well that may result in similar errors. Let’s explore what causes this issue in detail –

What causes Error WOW51900314 in Windows?

The World of Warcraft error WOW51900314 occurs mainly because of one or more of the following reasons –

  • Using incorrect login details
  • Corrupted gameplay
  • Server Issues
  • Internet issues
  • Outdated graphics drivers
  • Firewall blocking the WoW game

How to Fix World of Warcraft Error WOW51900314

World of Warcraft Error WOW51900314 Solutions

If you are not able to play the World of Warcraft game because of an error code WOW51900314, try out these solutions and see if any address the issue –

1] Use correct Login credentials

Before you apply any solution, check if you are using the correct login credentials to sign in to your game account. To keep it simple, you may also try changing your password. In case the error persists even after this, follow the next fix.

2] Check World of Warcraft Server

The WOW51900314 error usually occurs when there is a server outage issue. You may get to know about any WOW server issues from its official Twitter handles or simply use one of the Down detectors to know about the same. 

If this confirms that the server is indeed down, it’s better to call it a day and stop opening this game for the next 4-6 hours. 

3] Check your Net connectivity

In case the WOW server is all up and running fine, you should check if there is any problem with your net connectivity. If you are using a Mobile hotspot, or router to surf the Internet, checking your network strength is quite an easy task. Use any internet speed testing tools and you will be sure of your current internet speed. 

Alternatively, you may also try switching to some other ISP and see if the problem persists even after this or not. 

4] Disable Add-Ons

World of Warcraft game supports several third-party add-ons that may ease the gameplay. Gamers also use add-ons to modify the game interface or display a few additional information on the game screen. However, as they are not supported by the native WoW, they may cause some issues including error WOW51900314. So, you better stop using any external feature on this game and see if the problem resolves after this.

Here’s how you can remove or uninstall 3rd-party add-ons on WoW –

  • Press Win + R to launch the Run dialog.
  • Copy/paste the following and press Enter –

%\World of Warcraft\_retail_\Interface\AddOns

  • In case you are on an older version of WoW, try this location instead –

%\World of Warcraft\Interface\AddOns

  • Use Ctrl + A to select all items here. Now, use Ctrl + X to cut all these items, and paste them into a new folder. Make sure to keep this folder safe as you may require to undo this if this method doesn’t work. 

Now that you have made the AddOns folder empty, launch the World of Warcraft game again and see if the issue resolves. 

5] Reset WOW gameplay

Sometimes, errors like WOW51900314 may also occur because of a corrupted add-on or game file. If that’s the case, reset the game UI by following these steps –

  • First of all, close the World of Warcraft game and any of its running addon managers.
  • Uninstalling additional addons is best in such scenarios.
  • Open Battle.net next, and click Options > Show in Explorer.
  • The system will redirect you to C:\Program Files (x86)\War of Worldcraft.
  • Select the problematic game version i.e. “_retail_” or “_classic_”. 
  • Next, you will see three folders i.e. Interface, Cache, and WTF.
  • Rename all these folders to something else. To recognize them properly, you may simply add “old” to their pre-existing names. For example – WTF changes to oldWTF, Cache becomes “oldCache”, and so on.
  • After you are done renaming these folders, launch the game and try playing some games over it.

See if you can now play WOW games without getting into the error WOW51900314.

6] Update Graphics Card

If you haven’t updated your Graphics card from long ago, go and update the same via the optional updates. If the issue continues even after this, you may take the help of a third-party app i.e. DriverFix

7] Clean DNS and Renew the IP address

If you are still facing issues while playing a WoW game, try flushing DNS and renewing the IP address for once. Several users have reported fixing the WOW51900314 issue by performing this workaround. 

Here’s how to clear DNS in Windows –

ipconfig /flushdns

ipconfig flushdns

After you successfully flush your DNS, follow the steps below to renew your IP address –

ipconfig /release
ipconfig /renew
  • As their names suggest, the first one will release the current IP address while the latter will renew your IP address.
  • After you run both these commands successfully, close Windows PowerShell, and restart your PC.

From the next logon, check if the error wow51900314 resolves or is still occurring. 

8] Configure Firewall to allow WOW

When you install a new game into your computer, the Firewall immediately comes into the view. This prompts either to “Allow access” or “Don’t allow”. If you go for the second option i.e. Don’t allow, you won’t be able to play any WOW games. As a result, errors like WOW51900314 may occur. 

To fix this, you need to manually allow accessing the game via Windows Firewall. Here’s how you can configure the Firewall –

  • Launch Control Panel.
  • Click System & Security > Windows Defender Firewall.
  • On the left pane, locate “Allow an app or feature through Windows Defender Firewall”.
  • When found, click over it.
  • On the subsequent screen, scroll down and locate the World of Warcraft game under the section – “Allowed apps and features”. Click the button – “Change settings“.
  • Once you find this game, tick both the checkboxes under Public as well as Private. 
  • That’s it, Windows Firewall now allows playing WOW games on your computer.

Go and check if this fixes the WOW51900314 issue while starting any gameplay of World of Warcraft. 

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