This error occurs in the desktop launcher, in the area where game information and updates are typically displayed. We had a look into the issue and discovered that it is caused by a number of reasons including:
Corrupted Battle.net cache – This error is caused most commonly by temporary files (unless the error is server-related). If this scenario is applicable, then you can resolve the issue by clearing cached files.3rd party security program interference – Your active antivirus program or firewall may be causing this issue as well. An error can occur when a firewall or antivirus program detects a false positive. You may wish to disable or remove your overprotective security suite depending on your situation.Outdated GPU drivers – If you encounter this error while trying to open a game you installed through Battle.net, you probably have outdated GPU drivers that Battle.net no longer accepts. You should install the latest GPU drivers as well as physics drivers if this is the case.
Now that we know about the possible causes, let’s look at some troubleshooting methods that might help you fix the issue.
Update Your Drivers
Not only do updates provide you with new features, but they also ensure your program runs smoothly. Therefore, if a game does not load or is not working, it is important to check for out-of-date drivers. Here is how you can update your drivers to fix the BLZBNTBNA0000000C error:
Clear the Battle.net Cache
You may encounter the BLZBNTBNA0000000C error if your Battle.net launcher cache is corrupted. A clearing the cache of Battle.net may be the solution in this case.
Launch the Battle.net Client as Administrator
You may also have trouble loading Battle.net on your operating system if it lacks the necessary permissions. If this happens, try running the program as an administrator by following the steps mentioned below:
Disable or Uninstall the System’s Antivirus or Firewall
It is also possible that your antivirus software or firewall may have interfered with the game’s modules, resulting in the BLZBNTBNA0000000C error. You can try to disable/uninstall any third-party antivirus programs or firewalls you are using if the BLZBNTBNA0000000C error continues.
Reinstall the Battle.net Client
If nothing has worked for you till now, then consider uninstalling Battle.net Client and then reinstalling the latest version as the last resort. In case you are encountering the issue because of a corruption error or bug within the application itself, reinstalling should do the trick for you. Hopefully, it will fix the issue at hand.
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