THe target link is not correct to call the PI SOAP Adapter. Please ask your PI colleagues to get the correct URL. In case of an Integrated Configuration they can generate a WSDL directly from within the Integrated Configuration. In case of a classical PI scenario they can generate it from the respective Sender Agreement. And please take in mind that all that stuff works only, if you use a FQDN like hugo.john.com:50400/....
Additionally take care of the difference between http and https call. If https is not configured in PI that URL will deliver you "nothing" ....
HOope this helps ...
REgrads, Volker
