What is “406-Not Acceptable Response” in HTTP?
Your operation did not fail. Your backend service is saying that the response type it is returning is not provided in the Accept HTTP header in your Client request. Ref: http://en.wikipedia.org/wiki/List_of_HTTP_header_fields Find out the response (content type) returned by Service. Provide this (content type) in your request Accept header. http://en.wikipedia.org/wiki/HTTP_status_code -> 406