Connection Troubleshooting - Blizzard Support
https://eu.battle.net/support/en/article/000099037Reset 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 …
Connection Troubleshooting - Blizzard Support
eu.battle.net › support › enIf 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.