These can include 400 (Bad Request) if Tableau Server cannot parse or interpret the message in the request, 403 (Forbidden) if the request was not authorized, 404 (Not Found) if a resource could not be located, and 405 (Method Not Allowed) if the wrong verb was used for an operation (for example, making a GET request instead of a POST request) 404 Not Found The 404 status code, or a Not Found error, means that the user is able to communicate with the server but it is unable to locate the requested file or resource 404 errors can occur in a large variety of situations If the user is unexpectedly receiving a 404 Not Found error, here are some questions to ask while troubleshootingMicrosoft's IIS 70, IIS 75, and IIS 80 servers define the following HTTP substatus codes to indicate a more specific cause of a 404 error 4040 – Not found 4041 – Site Not Found 4042 – ISAPI or CGI restriction 4043 – MIME type restriction 4044 – No handler configured 4045 – Denied by request filtering configuration
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