Blizzard Battle.net Error Code BLZBNTBNA00001388 [Fix]

Blizzard Battle.net is a gaming platform where you can install games released by Blizzard Entertainment. You can play Call of Duty, Overwatch, HearthStone, etc through it. Some users are encountering some errors on Battle.net. If you also see the error code BLZBNTBNA00001388 in Blizzard Battle.net on your Windows 11 or Windows 10 PC, then this post will help you fix the issue.

Why does Blizzard Battle.net Error Code BLZBNTBNA00001388 occur?

Blizzard Battle.net Error Code BLZBNTBNA00001388 can primarily be caused due to:

Unstable or slow internet connection
Battle.net server issue
Proxies or VPN connections

Let’s get into the solutions to the issue.

Fix Blizzard Battle.net Error Code BLZBNTBNA00001388

You can fix the Blizzard Battle.net error code BLZBNTBNA00001388 using the following ways.

Check the status of your internet connection
Check the Server status
Log out and log in in to the Battle.net application
Delete Battle.net temporary files
Update Graphics & Network drivers
Turn off proxies or VPN
Use the Network Reset button.

Let’s get into the details of every method.

1] Check the status of your internet connection

Check whether your internet connection is working properly by running speed tests. The internet may be inconsistent at times. That also results in Battle.net error code BLZBNTBNA00001388. You need to restart the router, or alternatively, change your internet connection.

2] Check the Server status

Check if Battle.net is working fine. Sometimes, there might be issues with the battle.net server. Use free online tools to check the server status of Battle.net or check on social media. If there is downtime, you need to wait until it is fixed. If not, try the following solutions.

3] Log out and log in to the Battle.net application

Logging out and back into the Battle.net application helped resolve many issues with the program. It has the potential to fix the Battle.net Error Code BLZBNTBNA00001388.

3] Delete Battle.net temporary files

Delete the Battle.net temporary files on your PC after logging out of the Battle.net account. End all the processes like Game process, Agent.exe or Blizzard Update Agent.exe, Blizzard Battle.net in the Task Manager before deleting temporary files.

To delete temporary files of Battle.net,

Open Run command
Type %ProgramData% and press Enter
Search for the Blizzard Entertainment folder in the directory and delete it

4] Update Graphics & Network drivers

Outdated or corrupted graphics and network drivers also can cause the issue. You need to update graphics drivers and network drivers to the latest version to fix it. You can update drivers in the following ways:

5] Turn off proxies or VPN

The proxies or VPN might be causing the issue. You need to disable proxies or turn off the VPN to fix the issue. After disabling them, try using Battle.net to see if the issue is resolved.

To disable Proxies on Windows,

Open the Settings app
Click on Network & Internet
Select Proxy tab
Toggle the button on beside Automatically detect settings
Then, set Use a proxy server to Off

To disable VPN, click on VPN in the Network & Internet tab in the Settings app. You will see the list of VPN connections there. Disable them by toggling the button off.

You can also disable VPN in the VPN program. You need to turn off the kill-switch first in the settings and then turn off the VPN connection.

6] Use the Network Reset button

If you see this error code frequently, you may want to consider using the use Network Reset button and see if that helps.

These are the different ways you can employ to fix the error code BLZBNTBNA00001388 on Blizzard Battle.net.

If nothing helps, contact their Support and report your problem to them.

How do I fix Battle.net errors?

There are different ways in which you can fix the errors on Battle.net. You can relaunch it, update Battle.net, delete temporary files, log out and log in again to Battle.net, etc. Each error has a different solution.

How do I fix the Battle.net network error?

If you are facing the Battle.net network error, you can check the status of your internet connection, relaunch the Battle.net launcher, flush DNS, restart the router, update network drivers and troubleshoot network issues on your PC.