Invoke webservice (authentication issue)

Hi,

I am facing wierd thing. I have a invoke WSDL step in the process and for some reason when I try to load the WSDL URL I get 401 error. However if I open web browser on the same machine and paste the URL to the address field and supply correct credentials, the WSDL is listed.

Any thoughts why LC won't load the WSDL file?

Thanks for prompt reply

J.