When updating QuickBooks or downloading payroll updates, problems with internet connectivity or security settings can result in QuickBooks Error 12157. Incorrect date and time settings, misconfigured firewall settings, or problems with other apps are usually the causes. Verify the system date and time settings, make sure your internet connection is steady, and modify your firewall settings to permit QuickBooks access in order to resolve this issue.Call 1.855.738.2784 to speak with a QB support representative.