QuickBooks Error 12057 typically appears when users attempt to update payroll or access online banking features. This connectivity error occurs due to internet security settings, firewall restrictions, or SSL certificate issues. To resolve this error, start by checking your internet connection stability. Configure your firewall and antivirus settings to allow QuickBooks through security barriers. Update QuickBooks to the latest version and verify SSL certificates are current. Run QuickBooks as administrator and temporarily disable third-party antivirus software during updates. If the problem persists, contact QuickBooks technical support for advanced troubleshooting assistance to restore full functionality.