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How To Fix COD Error Code blzbntbgs00003f8

Read this guide to learn how to fix the error code blzbntbgs00003f8 in Warzone.

The blzbntbgs00003f8 error code is something that players of Call of Duty have come across. Players have faced this issue in Warzone, Black Ops 4, and Modern Warfare as well, indicating that the problem is universal across different COD games. This error only occurs in the multiplayer modes of the games. If you are one of those who have come across this issue when playing, we have got just the guide for you. Here, we will explain in detail all of the different types of solutions to fix this problem.

How to Fix Error Code blzbntbgs00003f8 in Call Of Duty?

Check your Internet

One of the first steps you need to take to rectify the error code blzbntbgs00003f8 in COD is to check your internet connection. Since this bug occurs in the multiplayer modes of the game, it makes sense to just check if your internet is working properly, before you head on to any complex solutions in this guide.

Change DNS Server

Changing the DNS server is one of the more popular fixes to the blzbntbgs00003f8 error code in Call of Duty. To do so, you need to first open the Run dialogue box in Windows. To do so, you need to press the Windows and R keys together. Once the box opens up, type control.exe inside the resultant text box.


Once you do so, press the Enter button. Doing so will open up the Control Panel. Once the Control Panel opens up, head over to the Network & Sharing Center.


Now, click on Change Adapter Settings.

This will take you inside the Network Connections menu. Here, you need to right-click on your current network. From the resultant dropdown list, you need to click on Properties.


From here, go to the Networking tab. Next, click twice on the Internet Protocol Version 4 (TCP/IPv4)

Inside the resultant screen, you need to make sure you enable the box next to Use the following DNS server address. Once you do so, make sure to set as the Preferred DNS Server. Next, make as the Alternate DNS Server.

Once you follow all of these steps, make sure to click OK. Doing so will save all of your changes, after which you need to restart your computer to apply your changes. Once the computer relaunches, try starting Call of Duty again. If the error code blzbntbgs00003f8 does not occur, it means that the error is now solved.

Rollback Network Driver

This is an optional solution to the blzbntbgs00003f8 error code. It only applies if you use the Killer E2200 networking drivers on Windows 10. Users with this driver have claimed that rolling back their Network Driver with the Device Manager helps rectify the error code.

In order to do so, you need to press the Windows and R buttons together to open up the Run dialog box. Once the box opens up, type devmgmt.msc and then press Enter. Click Yes if you see the UAC (User Account Control) window with admin access. Inside Device Manager, scroll down through the list of all the devices present on your PC. Click on Network Adapters. Next, try and locate your Killer E2200 driver. Once you get it, click on Properties by first double-clicking on the driver’s name.

Inside the Properties menu, you need to click on Driver, and then Roll Black Driver. Once you do so, click on Yes. Doing so will confirm the rollback. Once this process completes, restart your computer. Once the PC restarts, check if the error persists.

Use a VPN

One of the known causes of the blzbntbgs00003f8 error code is the inability of your computer to reach the Blizzard servers. In order to get around this issue, you can try using a VPN, especially if the error is common in your country/region of residence.

And that’s it. These are all of the solutions to the error code blzbntbgs00003f8 that occurs Call of Duty games such as Warzone, Black Ops 4, and Modern Warfare. Before you move on to the more complicated steps, try out simple solutions, like checking your internet and looking for updates.

Now that you know how to fix this issue, check out our guide on the Best Fennec SMG Attachments in COD Warzone.