gSoap Error 400

[AmmarO]

Hello,

I'm trying to call a webservice using gSoap with the following code:

#include "SoapH.h"
#include "BasicHttpBinding_USCOREIAuthentication.nsmap"


int _tmain(int argc, _TCHAR* argv[])
{
	struct soap soap;
	soap_init(&soap);
	struct _ns1__GetServerTime Send;
        struct _ns1__GetServerTimeResponse Response;
	
	int ret = soap_call___ns1__GetServerTime(&soap,0,0,&Send,&Response);
	if(ret == SOAP_OK)
		int a =1;
	else
		soap_print_fault(&soap, stderr);
	system("Pause");
	return 0;
}

I get the following error:
Error 400 fault: SOAP-ENV:Server [no subcode]
"HTTP Error"
Detail: HTTP/1.1 400 Bad Request
Press any key to continue . . .

I get the same error trying to connect to different services. Can someone tell me what I'm doing wrong?
thanks,

[VictorN]

What is soap_call___ns1__GetServerTime? i couldn't find it in Google search...

[AmmarO]

What is soap_call___ns1__GetServerTime? i couldn't find it in Google search...

This is a call to the specific service I am trying to reach. The error occurs with other services as well.