CertificatePolicy is obsoleted for this type, please use ServerCertificateValidationCallback instead

Error: 'System.Net.ServicePointManager.CertificatePolicy' is obsolete: 'CertificatePolicy is obsoleted for this type, please use ServerCertificateValidationCallback instead.' http://go.microsoft.com/fwlink/?linkid=14202 Solution: Change the below line ServicePointManager.CertificatePolicy = new CustomCertificatePolicy(); to

ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CertValidation);

bool CertValidation(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslpolicyErrors)
        {
            bool result = false;
            // TODO: implement
            return result;
        }

Alternative: If you want to accept untrusted server certificate which I don't recommend :D .. replace the above function to the function below to the class.

bool CertValidation(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslpolicyErrors)
{
   bool result = false;
   if ((chain != null) && (chain.ChainStatus.Length == 1) &&
          (chain.ChainStatus[0].Status == X509ChainStatusFlags.UntrustedRoot))
              result = true;
   return result ? result : sslpolicyErrors == SslPolicyErrors.None;
}