How to fix WoW error BLZ51901016?

Today we are going to show you how to fix WoW error BLZ51901016. Some gamers are reporting this issue where they cant log into the game. They say that they can still use the Bnet voice chat and discord and everything else except Blizzard games and Chrome browser. Some tried deleting the cache files but nothing happened in the and. Others have tried to reboot their modems and troubleshoot the internet. But these methods did not fix WoW error BLZ51901016.

The Blizzard Error Code BLZ51901016 has been plaguing World of Warcraft players for a long time, preventing them from connecting to the game. Fortunately, there are a few things players may try to repair the WoW error BLZ51901016, which might be precisely what you need when you’re in a hurry to complete your last raids or PvP activities for the weekly prizes.

How to fix WoW error BLZ51901016?

If your PC doesn’t fulfill the game’s system requirements, or if you are having a connection problem, you might face the following WoW error BLZ51901016:

We also have a guide showing how to defeat Eyegor in World of Warcraft, check it out if you are having difficulties defeating that mighty foe.

Reset your router

The first, and the most straightforward, option is to reset your router. After turning off your internet router, wait a few minutes before turning it back on. Finally, restart the World of Warcraft game to see if the problem has been resolved. This quick-fix works most of the time, but if it fails, proceed to the next steps.

Flush the DNS

After the previous step, it’s time to reset your router and modem. This isn’t a difficult task, but you should do it because Blizzard recommends it. To fix the WoW error BLZ51901016, flush the DNS in this stage:

• Click on the Start icon.
• Type “Command Prompt”
• Right-click on Command Prompt and select “Run as administrator.”
• Type the following command without quotations “ipconfig /flushdns”
• Hit Enter.

Deactivate Optimize Network for Speed option

This approach has been recommended by a lot of World of Warcraft players, and they’ve confirmed that it works. To uncheck this option, perform the following steps:

• Press Esc in Word of Warcraft to open the Game menu.
• Select the “System” button.
• Choose “Network.”
• Uncheck the “Optimize Network for Speed” option.
• Click on the “Apply” option.
• Finally, click the “Okay” button.

Lower the background FPS

WoW error BLZ51901016 can be fixed by lowering the game’s background FPS. Follow these steps:

• Open the Warcraft Menu.
• Select the “System” button.
• Choose the Advanced tab.
• Uncheck the Max Background FPS option.
• Use the slider to reduce the background FPS.
• Click on the “Apply” option.
• Finally, click the “Okay” button.

Hopefully, following these tips will resolve WoW error BLZ51901016 in your game.

The official Blizzard support team recommends some solutions too, follow these steps and try to solve the issue:

• Ensure that your computer meets the minimum system requirements for the game. (Shadowlands | Classic)
• Update your drivers and operating system to resolve any compatibility issues.
• Reset your user interface to make sure your files and addons are not corrupted.
• Reset your network devices to make sure your router hasn’t become flooded with data.
• If you’re using a wireless connection, optimize your internet connection to rule out a connection issue.
• Close all other applications to resolve software conflicts and free up resources.

WoW server maintenance

Below you can find the official WoW server maintenance schedule, planned for the end of May 2022. If you are looking for a Malfunctioned Constructor WoW guide, we got you covered!