Connection broken error while service consumer creation

Hi,

I need to consume a .net soap web service. During the creation of the service consumer the following error occurs:

Exception occurred in communication framework:Error in HTTP Framework:500 Connection Broken http://domain/path/servicename?WSDL

Unfortunately I cannot find informations regarding this error.

There is one strange behavior. Our SAP System is running on Linux and the Web Service on a windows machine. From a windows system it is no problem to access the WSDL-File. On a Linux System this is not possible.

Does someone know this error and knows reasons?

Thanks, Vanessa