Error 502 Bad Gateway is one of the common browser errors that affect QuickBooks and negatively impact other web applications running on browsers like Google Chrome and Firefox. In most of the applications, error 502 arises because of an invalid response from the server, but in the case of QuickBooks, this happens when the browser’s cache memory is full, or it is infected with trojan infection. 502 Bad Gateway error can appear in QuickBooks Online and its Desktop application while running payroll or logging into the QuickBooks Online account. Some instances have been reported where users have lost their entire QuickBooks data because of this simple but dreaded error. Follow the troubleshooting steps mentioned in this article to get rid of the 502 Bad Gateway in the QuickBooks Online App.
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