Soap Adapter Timeout on GetResponse with .NET via Stylus Studio

I am able to send/receive a soap request via XMLSPY, the SAP SOAP client and with Stylus Studio using Apache_AXIS.

When I do the same with Stylus Studio using Microsoft .Net option in the binding tab I get a timeout.

System.Net.WebException: The operation has timed-out at System.Net.HttpWebRequest.GetResponse().........

I already changed the timeout parm in Stylus Studio in the binding tab. Also increased the TIMEOUT and PROCTIMEOUT (PROT=HTTP,PORT=8000,HOST=******,TIMEOUT=3600,PROCTIMEOUT=7200).

The XI monitor gives a nice Black flag. The AdapterFramework does not show errors.

Anyone got an idea ??