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According to Blizzard support, this error “WOW51900319” is a generic catch-all error code for “You have been disconnected”.
Some similar complaints, according to Blizzard, include “getting dumped from WoW”, getting “disconnected from World of Warcraft” and “disconnected with error BLZ51900075”.
We found a bunch of fixes for the error- hopefully they’ll be able to solve the dilemma on your end. (No guarantees, though!)
Blizzard explains that this error can have a variety of causes- but there are some fixes you can try to clear the problem.
Solution #1 (FPS Fix)
A popular fix comes from an Epinionated blogger who says that the problem, for him, related to a frames per second issue.
The fix involves ensuring that the that the Background FPS option was selected and set to 30fps.
Switching this Max Background FPS rate to 30 in World of Warcraft has been a functioning fix for a lot of users that cleared the error:
Solution #2 (Battle.net Logout)
One World Of Warcraft player said he was able to fix the error by logging in and out from Battle.net.
Solution #3 (Reddit Network Fix)
Over on Reddit, a popular solution was discovered.
It relates to playing over a tethered, 4G LTE connection.
If you uncheck “Optimize Network for Speed” under System > Network Options, it results in a longer delay between disconnections, which resolved the error for a bunch of Reddit WoW players.
Solution #4 (Battle.net Technical Fixes)
This 4th solution actually involves running through the gamut of Battle.net’s different technical fixes.
According to Battle.net, this error message appears whenever your game loses its connection with the World of Warcraft servers.
They recommend following the @BlizzardCS Twitter account to see if there are server status alerts. They also recommend checking out Battle.net’s Technical Support Forums for extra information.If the Twitter account isn’t saying that there are any active server issues, proceed to the Troubleshooting Connection and Latency Issues article and if that fails, contact their support directly. Some technical fixes are below (full step-by-step from Battle.net):
- Reset your user interface to make certain your files and addons aren’t corrupted.
- Reset your network devices to be certain your modem has not become overloaded with data.
- Release and renew your IP and flush your DNS to fix any internet network problems.
- Make sure your drivers are updated to fix any compatibility problems.
- If you are utilizing a wireless connection, try optimizing your online connection to eliminate the possibility of a connection issue.
- Experiment with closing background programs to solve for potential software conflicts.
How To Reset Your User Interface
Resetting your User Interface to its default settings may solve a variety of display and interface problems.
- Totally exit World of Warcraft.
- Un-install any addon managers to guarantee they do not re-add your eliminated addons.
- In the Blizzard Battle.net desktop application, click on Options and choose Show in Explorer (Windows) or Reveal in Finder (Mac).
- Open up the World of Warcraft® folder.
- Now you’ll re-name the Cache, Interface, and WTF folders to CacheOld, InterfaceOld, and WTFOld.
- Next, relaunch World of Warcraft to ensure the alterations may take effect.
If you are using Windows and continue to experience difficulties, continue with the below methods to remove specific files in the Virtual Store directory.
Note: This directory may well not be found on your computer. If it isn’t, you will get a Windows error, and you may disregard the subsequent steps.
- Configure Windows to display hidden folders and files.
- Press Windows Key + R then copy and paste the following string in the Open field: %localappdata%\VirtualStore\Program Files\World of Warcraft\
- Next, select OK.
- Open up the \Program Files folder if available, and search for a \World of Warcraft folder.
- Open up that folder and delete the Cache, Interface, and WTF folders.
- Then, close Windows Explorer and reboot your operating system.
Solution #5 (Try An Ethernet Cable)
The video creator sympathizes- there’s nothing worse than getting disconnected from WoW in the midst of a campaign.
When you get an image with an error and a bunch of numbers- what do those numbers mean? He says that it’s super easy to fault Blizzard for everything that fails in the online game, but he cautions that maybe we ought to search for a different, user-generated cause.
It could be Blizzard’s fault- their servers might be overloaded, which often happens at the start of an expansion when many people are signing into the video game, but it can also be an issue with your personal computer. Perhaps the graphics resolution settings are too high and your personal computer can’t handle it or perhaps it is your connection to the internet.
The creator explains that the internet connection does not actually have to be really fast, but it does have to be stable.
The YouTuber says that you’ll want to experiment using a line-in connection and playing off of a wireless connection. While The majority of Wi-Fi connections might be very good, but stability can be a problem.
To be able to play the game, if you happen to be receiving this error frequently, then you need to consider a potential WiFi issue- so experiment with an Ethernet cable.
From our research, this seems to be an ongoing problem, with gamers blaming Blizzard, and Blizzard frustratingly suggesting it’s a problem on the user’s end.
Whatever the case may be, our recommendation is to follow some of the fixes above and also open up a support ticket with Blizzard or Battle.net to see if they can provide additional help resolving the WOW51900319 error.