World of WarCraft Not Updating with Error BLZBNTAGT00000840
This is a known issue that can occur when a patch is pushed. The following steps will workaround the issue:
- Press CTRL+SHIFT+ESC, and locate the WoWVoiceProxy.exe or World of WarCraft Voice Proxy process then End Task.
- Restart the PC.
If the error persists, please try the steps on our support article.