Blizzard Support - Network Initialization Failed

Network initialization failed.
Error: 0xE00f00B0

If you encounter this error when launching Overwatch, try these steps:

Reset your network devices to make sure your router hasn't become flooded with data.
If you're using a wireless connection, optimize your internet connection to rule out a connection issue.
Update your drivers and operating system to resolve any compatibility issues.
Release and renew your IP and flush your DNS to resolve any network conflicts.
Close all other applications to resolve software conflicts and free up resources.

Advanced Troubleshooting

Check your network configuration to find any issues with your firewall, router, or port settings.
If you're using a VPN, try removing it.
Disable any proxies that may interfere with the login module.
Run a security scan to remove any viruses or malware infections.
Configure your security software's exception list to allow Blizzard applications to run.
Try creating a new administrator account to resolve permissions issues.
Your Windows Hosts file may contain incorrect entries. Check and reset any incorrect Hosts file entries.
Old firmware on your modem and router can cause issues with complex game connections. Visit the manufacturer's website for instructions on how to apply firmware updates.

If you have tried these steps and still require assistance, please visit our Technical Support Forums or contact us.

Network Initialization Failed - Error 0xE00F00B0