QuickBooks
Error 502 Bad Gateway indicates that the HTTP status code server is receiving
an invalid response from another server on the internet. When you visit a
website, the browser itself stores some data from the page in cache memory so
that it loads quickly the next time you visit the same page. When this cache
memory is full, your browser will no longer be able to save data and you will
receive a 502 Bad Gateway error code. This error can be easily fixed by
clearing your web browser's cache files.
Below is the
list of the steps that are effective against QuickBooks Error 502 Bad
Gateway
Solution 1: Access QuickBooks using a Web browser
Solution 2: Download the latest transactions manually
Solution 3: Verify settings of active scripting in the
internet explorer
Solution 4: Clear cookies and cache
Solution 5: Clear cache of QuickBooks
Solution 6: Add the Intuit website as a trusted website in
the browser
Encountering
the QuickBooks 502 Bad Gateway error can indeed be frustrating. However,
resolving it is achievable by simply following the methods outlined above step
by step. If you're still unable to resolve the issue, reaching out to QuickBooks Online
Support staff is one of the most effective ways to get assistance and
resolve the error.