The error means something is preventing or blocking WoW and stop the player from connecting or logging into the account. It directly concerns the internet connection and the gaming server often appears when the connection malfunctions or gets broken and force the gamers out of the game directly to the login page. The WOW error blz51900001 is very annoying, however fortunately the error s fixed by many gamers and managed to get into the game. But before heading straight to the fixes you must understand what is causing the error.
Due to Realm Offline Status: If the WOW is currently down in your region then this can also cause the problem so, very first make sure to check the status of Realm.3rd party Antivirus – This is the very common problem your security program might be overprotective and conflicting with the game files, so disabling the antivirus program might do the trick.Incorrect Firewall settings – If you have changed your firewall settings then this might be causing conflict with the game. So, settings firewall settings to default may work to troubleshoot the error.Corrupted game cache – There are ample chances that you are dealing with game corrupted cache files and this is what causes the error when you try to log in and get disconnected. So, clearing the game cache works for you to resolve the error and force the game to run without the previous data.Corruption in the game files – There is also a possibility that you are getting the error due to the underlying corruption and this is affecting the game files. In this case, using the Blizzard Scan & Repair tool helps to locate and repair the file conflictions related to the World of Warcraft.Other programs conflicting with the game – If you have recently installed any app or program then this may be causing inconsistency with the game. Uninstall the recently installed program completely and trying login into the game.Outdated drivers – A severely outdated or partially corrupted GPU driver can be the root cause that is causing the BLZ51900001 error. So, updating the GPU driver by opening Device Manager or the graphics card branded software and physics module fixes the problem.
As you are now well aware of the most likely culprits causing the error code, here follow the list of verified fixes that other affected gamers have successfully utilized to circumvent the You have been disconnected WOW error.
Preliminary Basic Solutions:
Initially, you need to check certain essential points before starting with the detailed troubleshooting solutions to fix the WOW error on Windows 10. Once you have done the above quick tweaks, start with the solutions accordingly to solve the problem.
Verify the Realm status
If WOW is down in your area, then also this can cause an error when any player tries to log in to the game. So, follow the check the Realm status in your region and locality to verify what is causing the problem: If you find the game is not online then choose the different region and try to login with your account credential or else head to the next solution.
Reset User Interface
You may be getting the error due to the corrupted game files and add-ons. And resetting the user’s interface to default delete the corrupted game data and fixed error Disconnect on Login BLZ51900001 for many gamers. So, follow the instructions to do so:
Interface – InterfaceOldCache – CacheOldWTF folders – WTFOld
Now, restart the WOW game to let the changes take effect
Rearrange Console Variables
There is a possibility that you have mistakenly modified the console variables and this is what causes the error. this worked for many users to bypass the error when login into the game. Follow the instructions to reset the console variables: And re-launch the game to see if the error is resolved or move down to the next possible solution
Disable the Third-Party Antivirus Program
Many gamers managed to fix World of Warcraft Error BLZ51900001 by disabling the antivirus program installed on their system. The antivirus program installed on your system sometimes becomes overprotective and conflict with the game files. So, to fix the error simply disable the 3rd party antivirus program temporarily. To disable the security program, click on the taskbar and choose Menu. Then right-click on the antivirus icon and from the context menu choose Disable option. Also, make sure to disable the Windows defender when running the game. Moreover, the steps to disable the antivirus program may differ as per the antivirus program you installed on your system. You can read our article to find the steps for turning off the antivirus as per your antivirus program installed. Once you disable it, launch the game once again and see if the error has been resolved
Restore the Firewall Settings to Default
The firewalls generally support the game but this can restrict the packets from the unidentified sources or modifies the priority of the packets. And this may cause latency, problems with the patching or issues when connecting to the Blizzard services. So, there might be a configuration problem with the firewall and restoring it to default settings may work for you. Follow the instructions to restore firewall settings:
Uninstall Recently Installed 3rd-Party Programs
If you have recently installed any 3rd party program or application then this might be conflicting with the game and as a result, you get the error code BLZ51900001 when you start the World of Warcraft. You can uninstall the program through the Program and Features. Follow the instructions to do so: If still getting the same problem, then head down to the next possible solution.
Run the Blizzard Scan & Repair Tool
As it turns out the World of Warcraft Error BLZ51900001 can also be triggered due to some corrupted or damaged games files. This generally occurs after the failed try to update the game or after the antivirus program quarantined some files. Luckily, Blizzard offers an inbuilt tool that is capable to fix corrupted or damaged game files after scanning automatically. This is available in the Blizzard Battle.net app and many users confirmed this help them to fix the error. Follow the steps given to run the tool: And as the operation is complete, reboot your system manually if you are not prompted automatically and reboot your system. Now launch the game and see if the error is resolved even after trying to repair the game files, then head to the next fix.
Update the GPU Driver
A driver incompatibility can be a cause of the unable to log in after launching World of Warcraft in Windows. Also, some affected users have reported, updating the outdated or partially corrupted GPU driver, works for them to solve the error. So, if you haven’t updated the drivers for a while, then updating the GPU drivers works for you. Follow the step-by-step instructions to uninstall and then reinstall the current drivers with the updated one: And as the scanning is completed, the GPU driver has successfully installed on your system, then restart your computer and start the game as the system starts Check if the BLZ51900001 error on WOW is solved. But if still, the error appears then the error might be triggered due to the outdated or missing physics module. So here you need to visit the official manufacturer website for installing the missing drivers. Below check out the list of software you need to visit and search for the latest as per your GPU manufacturer. GeForce Experience – Nvidia Adrenalin – AMD Intel Driver – Intel Hope this works for you to solve the error but if not then updating World of warcraft with the latest patch may work for you. Make sure you have installed the latest hotfixes released by Blizzard. You can check the latest patches and hotfixes released on the official website. Updating games with the latest patches not only fixes errors and bugs but also boost the game experience. So, to find out the latest patches and hotfixes visit WOW official website and install them and fix various bugs and errors.
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