QuickBooks Error 15215 happens during software updates or payroll, frequently as a result of intermittent internet connections or incompatible programs. It stops updates from downloading correctly and can show a verification failed message. Checking network settings, restarting services, and making sure no background programs are interfering with QuickBooks operations are all necessary to fix this problem. Call 1.855.738.2784 to speak with a QuickBooks expert for assistance.