FIX: 504 That's An Error & 502 Bad Gateway
491How to fix both the 504. That's An Error and the 502 Bad Gateway error you are receiving.
The 502 Bad Gateway error is an HTTP status code that means that one server on the internet received an invalid response from another server.
502 Bad Gateway errors are completely independent of your particular setup, meaning that you could see one in any browser, on any operating system, and on any device.
When it comes to WordPress, there are a lot of different errors that can be downright frustrating and confusing. A few that come to mind are the white screen of death or the frightening error establishing a database connection. But an even more popular one is the 502 bad gateway error. Why? Because this regularly happens around the entire web, not only to WordPress sites, but even popular services such as Gmail, Twitter, and Cloudflare. But of course, we really only care about how it impacts your WordPress site. Read more below about what causes this error and some solutions on how to quickly resolve it.
This tutorial will apply for computers, laptops, desktops,and tablets running the Windows 10, Windows 8/8.1, Windows 7 operating systems.Works for all major computer manufactures (Dell, HP, Acer, Asus, Toshiba, Lenovo, Samsung).