I tried many ways and still getting the below error.
When the same service is called from other internal application, it is getting successful. Any help would be appreciated.
Thanks Matt. I checked there and problem solved
I suggest to check the application logs where this server is running. The error message shows a WSDLException, meaning that the WSDL URL responded with Internal Server Error 500 instead of the service descriptor. It could be that the other internal application is just calling the SOAP service directly without requesting the WSDL, and that is why it does not show any error. Double check by navigating to the WSDL URL in your browser. Generally WSDL URLs display the XML content in the browser.