If you are having trouble connecting to a web server, check to see if the connection between your computer and the server was interrupted. The issue could be either at your end or at the server end of the connection. If you cannot access a public server, then check your Internet status. If you can access a public server, then retry the web server at a later time.
Sometimes our software is unable to understand a response from a web server when the response is poorly formed. In this case, contact the server administrator if the server is in you organization. Your server administrator can address the issue on the server. When accessing a public server, contact the organization that administers the server to get resolution.
Sometimes our software is unable to understand a response from a web server due to a system limitation, which means that there is something in the response that our software does not support.