adding certificate to SOAP web service.

Question

Hello

 

I'm trying to call a webservice, which requires a certificate to work, the certeficate installed 

on local machine in mmc. 

 

 

i need to add a certificate using code to the web service instance. 

 

NeqatyWSDL.NeqatyWSAPI neqatyWSAPI = new NeqatyWSDL.NeqatyWSAPI();
neqatyWSAPI.Url = "https://simb140.margento.com:48728";

X509Certificate2 cert = new X509Certificate2(@"D:\cert.p12","pass",X509KeyStorageFlags.DefaultKeySet);

neqatyWSAPI.ClientCertificates.Add(cert);


   neqatyWSAPI.authorize(authorize);

The debugger stoped at the last line and raise error with the follwing:

 

The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel.