Fix WoW error blz51901016 by this method in 2021

World of Warcraft is a massive online role-playing game released by Blizzard Entertainment. Despite being one of the biggest games in the world, many players face a frequent issue called WoW error blz51901016. Here is everything you need to know to fix Fix WoW error blz51901016.

Word of Warcraft

The multiplayer online video game was released in 2004 by Blizard Entertainment. It is set in the fantasy universe of Warcraft, World of Warcraft takes place within the world of Azeroth. The game allows players to create their own character avatar and explore the game in a first or third-person view. The players can complete quests, interact with other players, roam around the game exploring the amazing landscapes, and battle with deadly monsters.

How to Fix WoW error blz51901016?

1. Reset your Router

The first and easy solution is to reset your router. Power off your internet router, wait for a couple of minutes and then restart it. Finally, restart the World of Warcraft game to check if the issue is solved or not. This quick-fix works most of the time, but if it doesn’t try the other steps mentioned below.

2. Flushing the DNS

This step might take a little effort than the previous one but it is recommended especially by Blizzard.

Here, you need to flush the DNS to resolve the game’s connection issue, WoW error blz51901016.

• Click on Type here to search taskbar button in your Windows 10.
• To search for it, input Command Prompt.
• Right-click on the Command Prompt and then select the Run as administrator context menu option.
• Then, enter ipconfig /flushdns in the Command Prompt
• Finally, Press Enter to initiate the command.

3. Deselecting the Optimize Network for Speed option

This method has been advised by lots of World of Warcraft players and they have confirmed this method work pretty much well. To deselect this option follow these steps:

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

4. Lowering the background FPS

Reducing the game’s background FPS can fix the WoW error blz51901016.

To do this,

• Open the Warcraft Menu
• Click the System option
• Select the Advanced tab
• Select the checkbox for Max Background FPS slide.
• While using the slider reduce the background FPS.
• Select on Apply
• AND then, click on Okay.

Hopefully, these methods will fix the WoW error blz51901016 in your War of Warcraft game. If these methods still don’t fix the issue, we would recommend you to contact the developers for support.