This error occurs when a proxy between the client and the Web server requires authentication. You may need to get a network trace or contact the proxy server administrator.
This error occurs when a CGI application does not return a valid set of HTTP headers, or when a proxy or gateway was unable ...
This error occurs when a client is requesting an invalid HTTP version. This can occur if the client is requesting an older, ...
This error occurs when a DNS restriction is set for the requested resource. Set DNS restrictions at the server, site, application, ...
This error occurs when a document is not specified in the URL, no default document is specified for the Web site or application, ...
This error occurs when a proxy between the client and the Web server requires authentication. You may need to get a network ...
This error occurs when a proxy or gateway has timed out waiting for a response from another server. It may be necessary to ...
This error occurs when a resource has been removed and in many cases is used when the resource is not available or has no ...
This error occurs when an ISAPI filter running on the Web server fails the authentication process. IIS does not ship with ...
This error occurs when either the username or password supplied to IIS is invalid, or when IIS cannot use the username and ...