I have an Error 502

[garox2b]

Hello, I just changed the DNS of my server to be able to put Cloudflare except that since I changed the DNS on all the pages I have an Error 502

thanks you

[sdayman]

Here are some suggestions:

Community Tip - Fixing Error 502 / 504: Bad Gateway

Error Try the suggestions in this Community Tip to help you fix Error 502 / Error 504: Bad Gateway / Gateway Timeout. Background The 502 / 504 errors are quite similar. Generally, a HTTP 502 / 504 errors occurs because your origin server (e.g., your web host) is returning this code to us, and Cloudflare returns this code in turn to your visitors. They are caused by a problem connecting to an upstream server - meaning your server is trying to initiate a process and this fails to work as expect…