How to Troubleshoot QuickBooks Error 12002?

QuickBooks users have been noticing QuickBooks Error 12002 when running QuickBooks on their systems. This error is more often related to a poor internet connection or when the network experiences timeouts. In this article, we will discuss the causes behind this error in QuickBooks and provide multiple approaches to resolve QuickBooks Error 12002 . Causes of QuickBooks Error 12002 The following are common causes that can trigger Error 12002 in QuickBooks: Technical problems with the router. Incorrect security settings. Erroneous SSL settings. Insufficient system storage. Internet Explorer not the default web browser. Poor internet connection. Troubleshooting Methods for QuickBooks Error 12002 Method 1: Altering the Network Settings Open Run window. Type the command " INETCPL.CPL ". Hit Enter . Make sure to configure the security level to a “ Medium-High ” level. Tap on the Internet . Then, advance to the Security section. Move on to the Connections . Herein, click on LAN set...