Are you unable to get rid of QuickBooks error 15311? Don't worry about it. The QuickBooks error 15311 occurs during the installation of QuickBooks or when you shut down the computer. Error message: "QuickBooks cannot be completed successfully". A connection to QuickBooks payroll could not be established. QuickBooks error 15311 is annoying and difficult to fix. You can resolve QuickBooks error 15311 by reading this article until the end. If you need external assistance, you can simply call QuickBooks enterprise support at 1888-485-0289.