title: c# : Unable to call web service after the certificate is regenerated on same domain
body: <p>I use my C# application to call a web service of an internal domain <code>xxx.com</code> and it has been working fine.  </p>
  
  <p>But now this internal server is destroyed, they recreated the machine with the same domain, and they generated a new certificate for this domain.</p>
  
  <p>Now, when I call the same web service on their machine, I get error : <code>Could not create SSL/TLS secure channel.</code></p>
  
  <p>I want to know why it stops working, and how could I make the call now (to renew the certificate?how?)</p>
  
  <p>Thank you.</p>