我正在调用一个需要客户端证书的API。将客户端证书安装到当前用户的个人存储中后，API调用成功。但是，当客户端证书安装到本地计算机的个人存储中时，调用失败，原因是：

The request was aborted: Could not create SSL/TLS secure channel.

下面是设置代码：

ServicePointManager.Expect100Continue = true;
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls
       | SecurityProtocolType.Tls11
       | SecurityProtocolType.Tls12
       | SecurityProtocolType.Ssl3;            
ServicePointManager.ServerCertificateValidationCallback = (sender, certificate, chain, sslPolicyErrors) => { return true; };

const StoreName storeName = StoreName.My;
const X509FindType findType = X509FindType.FindByThumbprint;
const string findValue = "9ce5b57fe576b9a0933b426347e74e5583da59dd";

var certCurrentUser = GetCertificate(storeName, StoreLocation.CurrentUser, findType, findValue);
var certLocalMachine = GetCertificate(storeName, StoreLocation.LocalMachine, findType, findValue);

对GetCertificate（）的两个调用都成功，并且证书似乎相同。（它们是从同一个.pfx安装的）

使用certCurrentUser进行此调用时，成功：

WebRequestHandler handler = new WebRequestHandler();
handler.ClientCertificates.Add(certCurrentUser); 
using (var client = new HttpClient(handler))
{
    client.DefaultRequestHeaders.Accept.Clear();
    client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));

    var response = await client.GetAsync("https://preprod.xconnectcollection.ce.corp.com/odata");
}

但是当使用certLocalMacher进行调用时，它会失败：

WebRequestHandler handler = new WebRequestHandler();
handler.ClientCertificates.Add(certLocalMachine); 
using (var client = new HttpClient(handler))
{
    client.DefaultRequestHeaders.Accept.Clear();
    client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));

    var response = await client.GetAsync("https://preprod.xconnectcollection.ce.corp.com/odata");
}

错误：

The request was aborted: Could not create SSL/TLS secure channel.

当使用本地计算机的客户端证书时，什么可能导致请求失败？