“We’re having trouble reaching one of our services. This is usually a temporary issue – please try again in a few minutes. If the problem persists, our technical team has been notified.”
This error occurs when your application (the client) makes an HTTP request to a server (often via a proxy or gateway), and that intermediate server receives an invalid or unexpected response from the upstream server.
Error Message: System.Net.WebException: The remote server returned an error (502) Bad Gateway.