Frequently caused by firewall settings, out-of-date QuickBooks versions, or problems with internet connectivity, QuickBooks Payroll Won’t Update happens when the program is unable to download or install payroll updates. To fix this and guarantee seamless payroll updates, you must update QuickBooks, verify your internet connection, adjust firewall settings, and fix installation files. Kindly contact the QB Support team at 1.855.738.2784 in the event that you have any problems.