When the program cannot connect to the internet when updating, QuickBooks Error 12007 appears. Incorrect system settings, firewall restrictions, or network problems may be the cause of this. In order to fix it, you must make sure QuickBooks has the right permissions to access online services for seamless updates, verify your internet connectivity, and modify your firewall settings. You can talk to a knowledgeable QuickBooks support staff by calling 1.855.738.2784.