Hi again,

I finally found that a new SSL Session is started when you change the
ConnectionGroupName property in the proxy class (I had to use a sniffer, as
the documentation did not mention anything about SSL), afterwards, all web
service calls made with the same ConnectionGroupName share the same SSL
Session (if in the server side the keep-alive connections are allowed).
Now the problem arises when I want to explicitly close that session, calling
Dispose on the proxy class does not work, changing the MaxIdleTime on the
ServicePoint does not work either and I prefer not to change anything in the
server side IIS.
But when I close the application that makes the web service calls, all
connections close instantly, so I wonder that there has to be a way to close
those connections programatically. Could anybody help me with this?

Regards,
Rodrigo.