calling web services from Unix Server

Hi,
I am working on an application which calls B2B Web Service.
Everything works fine while i call the B2B Service from my local windows machine (localhost), i can login to B2B service and also call other B2B service. But when i build the application in UNIX Dev Server i can't login to B2B server. Environment is WSAD 5.1.
Anyone in this forum has got any idea. I would really appreciate that!

thanks!

How is authentication set up on your local machine, and how is it set up on the server?