Diablo III Connection Issues

I am immediately disconnected while logging in to Diablo III
I cannot even reach the character list
Can't log in to D3

Before trying the following steps, check the BlizzardCS Twitter for any service interruptions.

Make sure your game is up to date by selecting Check for Updates from the Options menu in the Battle.net desktop app.
Make sure you have the correct option selected from the Region / Account dropdown above the Play button on the Battle.net desktop app.
Run the repair tool to repair any damaged game files.
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.
Delete the Battle.net Tools folder to automatically rebuild outdated or corrupt files.

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 running the game on an 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 the problem persists, uninstall and reinstall the game.

Make sure your game is up to date by selecting Check for Updates from the Options menu in the Battle.net desktop app.
Make sure you have the correct option selected from the Region / Account dropdown above the Play button on the Battle.net desktop app.
Run the repair tool to repair any damaged game files.
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.
Delete the Battle.net Tools folder to automatically rebuild outdated or corrupt files.

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 running the game on an administrator account to resolve permissions issues.
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 the problem persists, uninstall and reinstall the game.

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

Related Articles