Error while connecting to web service

[nimishr]

Hi

I stuck at very unpredictable error.
When i am trying to connect with web service. Then I am getting the below error

The content type text/html of the response message does not match the content type of the binding (text/xml; charset=utf-8). If using a custom encoder, be sure that the IsContentTypeSupported method is implemented properly
I have used below code
sugarClient = New SugarSOAP.sugarsoapPortTypeClient("sugarsoapPort", SugarCRMSoapURL)
result = sugarClient.login(user, "sugarcrm")

where i am trying to execute second line then if is giving that error.

Please sugget how can i tackle with this error?
Please help.

Thanks in Advance.

Regards,
Nimish R.