502 Bad Gateway Error
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..
The 502 Bad Gateway can be customized by each website. While it's fairly uncommon, different web servers do describe this error differently.
Below are some common ways you might see it:
Bad Gateway errors are often caused by issues between online servers that you have no control over. However, sometimes, there is no real issue but your browser thinks there's one thanks to a problem with your browser, an issue with your home networking equipment, or some other in-your-control reason.
A number of other errors are related to the 502 Bad Gateway error: 500 Internal Server Error, 503 Service Unavailable, and 504 Gateway Timeout specifically. A number of client-side HTTP status codes also exist, like the very common 404 Not Found error, among many others that you can find in this list of HTTP status code errors.