A connectivity problem preventing software upgrades is indicated by the error "QuickBooks Desktop Update Error 12029". Usually, firewall restrictions, network problems, or faults with internet configuration are to blame. In order to fix the update error quickly, one of the following methods can be used to troubleshoot network settings, temporarily disable firewalls, or contact technical support.If you would want to chat with a QuickBooks support representative informally, you can call us at 1.855.856.0042.