When QuickBooks is unable to establish an internet connection when updating, the error QuickBooks Error 12007 appears. Frequently, network problems, firewall restrictions, or improper browser settings result in this error. To resolve it, make sure QuickBooks is configured to use the correct browser, check internet settings, and set up firewall and security software. Call 1.855.738.2784 to talk to our QuickBooks Experts Team for immediate assistance.