Again: The underlying connection was closed: Could not establish secure channel for SSL/TLS

[jsanjosem]

I am trying to consume a Web service from ASP.NET that requires a
certificate. The code I am using is:

WSClass obj = new WSClass();

// Load the client certificate from a file.
X509Certificate x509 =
X509Certificate.CreateFromCertFile(@"micert.cer");

// Add the client certificate to the ClientCertificates property
//of the proxy class.
obj.ClientCertificates.Add(x509);

obj.MakeCall(xxxxxxx);

The certificate is installed in my account, so I granted access to the
private key to ASPNET user using:

winhttpcertcfg -i x:\xxx\micert.pfx -p xxxx -c LOCAL_MACHINE\My -a
ASPNET

Using this method I managed to have the application work on one
machine, but I am now trying to install it on another machine (the same
as the first one, a WXPSP2 box) and I still get:

The underlying connection was closed: Could not establish secure
channel for SSL/TLS

What is it I am missing?, I followed the same process. Any ideas? Thank
you.

 

[GCR]

Even if you grant access to the private key to ASPNET user, the application
has no knowledge on the location of this key! You should configure a separate
account for running your ASP.net application and deploy the crertificate in
this account's profile.

 

[GCR]

Sorry, disregard my previous reply: did you tried installing .NET Framework
1.1 SP 1 on the secon machine?