SOAP message

[npswarna_13]

I get the following exception when I try to access a webservice method from my code.

"Server did not recognize the value of HTTP Header SOAPAction: "

I get the connection and also webservice is available at the location.
It is working from all other machines.

Can you please suggest me how to solve this?
Thanks in advance
Swarna

[npswarna_13]

After trying out some things, I am not getting the above exception any more. but now the exception I am getting is

"The underlying connection was closed: Unable to connect to the remote server. "

After some amount of Googling, I understand that this is due to the Proxy settings.
I tried using Proxy object and modifying the Proxy settings in web.config.
But that does not seem to help in mycase.
Please suggest.
Thanks in advance.
Swarna