When QuickBooks is unable to validate a file’s digital signature, it results in the
QuickBooks Payroll Update Error 15215. Usually, one of three things causes this error: improper Internet Explorer settings, firewall interference, or a clash with another background application. Make sure Internet Explorer is your preferred browser, adjust your firewall settings, and end any background apps before updating payroll to fix the issue. For immediate assistance, please contact our QuickBooks Experts Team at
1.855.738.2784.
