Connection to Blizzard game server has been lost, BLZBNTBGS000003F8

In this post nosotros will show you how to fix the Connection to the Blizzard game server has been lost error on Windows xi/10 PC. Battle.net is a desktop game launcher application using which y'all can install, update, and play games from Battle.net games on a Windows PC. Withal, you might encounter some errors and bugs like whatever other software or application.

Connection to the Blizzard game server has been lost, BLZBNTBGS000003F8

One of such errors includes "Connection to the Blizzard game server has been lost." The error is accompanied by the error code BLZBNTBGS000003F8. When triggered, you will get the following fault bulletin:

Connection to the Blizzard game server has been lost. Please exit and try again.
Error code: BLZBNTBGS000003F8

This error is mostly reported by the Call of Duty players. Now, if you are one of those users facing the same fault, nosotros got yous covered. In this guide, we are going to mention several fixes that helped affected users resolve the error. You can also endeavor these fixes and get rid of the error.

What causes the Connection to the Blizzard game server has been lost mistake?

Here are the reasons due to which you might meet the Connectedness to the Blizzard game server has been lost error on Battle.net:

Ane of the principal causes of this error tin can be server problems. So, you need to ensure that the Blizzard Boxing.internet servers are non down. If the servers are downwards, you will need to look until the error is resolved from the server-side.
Your firewall can likewise be one of the reasons that yous are getting this error. In case your firewall is blocking the connection between your system and the servers, you lot should be able to resolve the error by allowing the game through your firewall.
Network issues on your PC can be another cause of this fault. Yous can try performing a network reset to set up the error.
Inconsistencies with your DNS server tin can too trigger the Connectedness to the Blizzard game server has been lost error. Hence, you can try switching to another reliable DNS server like the Google DNS server to resolve the error.
The error can as well be caused due to outdated or faulty device drivers including network drivers. If the scenario applies, y'all can try updating your drivers to prepare the error.

At present that you know the scenarios triggering the error, you tin try a suitable ready to resolve the error.

Connection to the Blizzard game server has been lost, Error BLZBNTBGS000003F8

Hither are the methods that you can use to fix the Connection to the Blizzard game server has been lost, fault lawmaking BLZBNTBGS000003F8 on Windows 11/x PC:

Make sure the server is non down.
Allow your game to run through Windows Firewall.
Perform a network reset.
Employ Google DNS Server.
Update your device drivers.
Try a VPN.

1] Make sure the server is not down

This fault can be very well facilitated due to a server issue. There tin exist a server overloading problem or the server might exist under maintenance. So, make sure the Blizzard game servers are upwards and running and the error is not occurring due to server problems. You tin can bank check the server status of the Blizzard server using a free server condition detector.

In instance you detect out that the fault is triggered due to a server effect, there is nothing much you tin do to prepare the mistake. But wait for some fourth dimension and the error must exist fixed from the server-side. However, if it turns out to exist that the servers are up and running, there must be another effect due to which the mistake has occurred. Hence, motion on to the next potential fix to resolve the error.

Read: How to increase Boxing.net download speed in Windows PC?

2] Permit your game to run through Windows Firewall

This error might be caused in case you are using overprotective antivirus or firewall. Your firewall might be blocking or hindering the connection between your PC and Blizzard game servers. And then, to bank check whether or not your firewall is the master culprit, try turning off your firewall temporarily. Afterwards that, check if your encounter the aforementioned error on Battle.internet or non. If the mistake is gone, you lot tin can be sure that your firewall was the i that was causing the error.

Now, when you lot discover out that your firewall is triggering the mistake, you tin can try assuasive the game to run through Windows Firewall. Here are the steps to do that:

Firstly, press Windows + R hotkey to open the Run dialog box and so enter firewall.cpl in it to open up upward the Windows Defender Firewall window.
Now, press the Allow an app or characteristic through Windows Defender Firewall option from the left pane.
Next, tap on the Change settings button and and then click on the Permit another app… button.
After that, scan and add Battle.net's executable and BlackOpsColdWar.exe files to the listing of Allowed apps and features.
Then, select the added apps and so enable the Individual and Public checkboxes.
Finally, press the OK button to save changes.

Y'all can now try relaunching Battle.net and open your game to cheque if the error is fixed or not. Similarly, you can also check if your antivirus is causing the trouble and then add Battle.net and the game to the exception or exclusion list of your antivirus.

In case the problem is non your firewall, you tin can try the next potential solution to gear up the error.

Read: Set up Ballsy Games connection fault, bug, and issues

3] Perform a network reset

You tin can too try performing a Network reset since the error might exist caused due to some network issue. Here are the steps to do that:

Firstly, open Command Prompt with administrator privilege.

Now, type and enter the following commands in the below club:

netsh winsock reset netsh int ip reset ipconfig /release ipconfig /renew ipconfig /flushdns

When all the commands are successfully completed, you can reboot your PC and open up the game to bank check whether the error is gone or not.

If the error still persists, you can move on to the next potential fix to resolve the error.

See: Set VALORANT connectedness error codes VAN 135, 68, 81 on Windows PC.

4] Use Google DNS Server

The "Connection to the Blizzard game server has been lost" error can also be triggered in case you are dealing with some inconsistency with your default DNS server. Hence, if the scenario applies, yous can switch to a more reliable public DNS server. A lot of affected users were able to fix the mistake by switching to Google DNS server. So, you can also do the same and check whether or not it resolves the error for y'all.

To switch to Google DNS Server, y'all can endeavour the below steps

Firstly, press Windows + R to evoke the Run dialog box.
Next, type ncpa.cpl in the Open field and then printing Enter to launch the Network Connections window.
Now, simply select and correct-click on your agile connection and then hit on the Properties option.
And then, select the Internet Protocol Version iv (TCP/IPv4) option and and so press the Properties button.
After that, cull the Apply the following DNS server addresses option and then use the post-obit addresses in the respective fields:
Preferred DNS server:8.8.8.8
Alternate DNS server:8.viii.4.four
Now, to save changes, click on the OK push button.
Finally, relaunch the Battle.net client and open the game over again to encounter if the fault is fixed or non.

If you are not dealing with a DNS server problem, you can try the next potential solution to fix the mistake.

5] Update your device drivers

If the error is notwithstanding not resolved using any of the above methods, the problem might be with your device drivers. There are chances that corrupted or outdated drivers peculiarly network drivers are causing the mistake in manus. In that case, y'all should exist able to fix the error by updating your Network drivers. After updating device drivers, reboot your PC and then check if the mistake is resolved.

Read: Fix Connection Interrupted fault in COD Black Ops Cold War.

6] Try a VPN

If none of the above solutions gave you any luck, you tin effort using a VPN. Every bit confirmed, some ISPs take trouble connecting to Blizzard and Battle.internet servers. In that instance, you lot should be able to fix the mistake by using a VPN client on your PC.

How do I set BLZBNTAGT00000BB8?

To fix the error code BLZBNTAGT00000BB8 on Battle.net, you can try disabling your antivirus that might exist interfering with the Battle.internet game launcher. If that doesn't help, you can try using an optimal internet connection, flush the DNS cache, disable proxy or VPN, reinstall the problematic game, or reinstall the Battle.net customer.

That's it.

Now read: