always get connection refused from https://testpro.douane.gouv.fr/rita-s/ServiceMoteurTarifaireTiers

Hello,

I am always getting a connection refused error when trying to hook up with the French customs web service as indicated above. The service itself is not at an https address but a simple http which I find odd (Disclaimer: I am just starting to explore web services so that is probably normal for anyone else except me). I have followed the tutorial  (https://www.soapui.org/soap-mocking/tips-and-tricks/securing-mockservices-with-ssl.html) for the basic SoapUI setup and supplied the user name/password and the other mandatory information when calling the service (note that the service definition marks all xml elements as optional which is not right following the attached document; at least a user name "ltIdentifiant", password "ltIdentifiant" and also a date value "ltIdentifiant" is required).

Unfortunately I am stuck on this. Anyone who could give me an advice what to check out ? The ssl settings are there in SoapUI for the mock service with the key store and everything but to no avail.

Regards and thanks in advance.