StarCraft II Disconnection Problems

Updated: 11 months ago
Article ID: 112217
Product:

Common Problems

  • I keep disconnecting from SC2.
  • Keep getting a disconnection error when playing StarCraft II.

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

  1. Reset your network devices to make sure your router hasn't become flooded with data.
  2. Release and renew your IP and flush your DNS to resolve any network conflicts.
  3. Update your drivers and operating system to resolve any compatibility issues.
  4. If you're using a wireless connection, optimize your internet connection to rule out a connection issue.
  5. Close all other applications to resolve software conflicts and free up resources.
Advanced Troubleshooting
  1. Check your network configuration to find any issues with your firewall, router, or port settings.
  2. If you're using a VPN, try removing it.
  3. Disable any proxies that may interfere with the login module.
  4. Run a security scan to remove any viruses or malware infections.
  5. Configure your security software's exception list to allow Blizzard applications to run.
  6. 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.

Tried everything here?

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