QuickBooks Error 12002: Causes & How to Fix It (Full Guide)

Qbdataworks29 Jul, 2025Finance

QuickBooks Error 12002 can be frustrating, especially when it interrupts your work or prevents you from updating processing payroll. This error usually appears when QuickBooks can’t connect to the server due to network issues, firewall restrictions, or other technical problems. If you see this error, you’ll likely get a message like: “Error 12002: A network timeout is preventing QuickBooks from accessing the server.”