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在我的公司，我们有一个用 C# 开发的 Windows 服务，用于处理来自客户端的请求消息，使用 SSLStream 和 Tls12 以及服务器和客户端证书。服务在 Windows Server 2012 上运行良好，包括 Windows 10 PC，无论是在发布模式下执行还是调试检查代码，但是最近在执行 AuthenticateAsServer 时抛出异常。一段代码是：

ServicePointManager.SecurityProtocol = SslProtocols.Tls12;
SslStream secureClient = new SslStream(networkStream, false);
secureClient.AuthenticateAsServer(serverCertificate);

networkStream 是 NetworkStream 的一个实例，它具有服务的 IP 和端口。serverCertificate 是安装在本地机器存储中的 X509Certificate2，用作自签名。客户具有相同的证书。异常详情如下：

System.Security.Authentication.AuthenticationException
  HResult=-2146233087
  Message=A call to SSPI failed, see inner exception.
  Source=System
  StackTrace:
       at System.Net.Security.SslState.StartSendAuthResetSignal(ProtocolToken message, AsyncProtocolRequest asyncRequest, Exception exception)
       at System.Net.Security.SslState.CheckCompletionBeforeNextReceive(ProtocolToken message, AsyncProtocolRequest asyncRequest)
       at System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest asyncRequest)
       at System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest)
       at System.Net.Security.SslState.CheckCompletionBeforeNextReceive(ProtocolToken message, AsyncProtocolRequest asyncRequest)
       at System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest asyncRequest)
       at System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest)
       at System.Net.Security.SslState.ForceAuthentication(Boolean receiveFirst, Byte[] buffer, AsyncProtocolRequest asyncRequest)
       at System.Net.Security.SslState.ProcessAuthentication(LazyAsyncResult lazyResult)
       at System.Net.Security.SslStream.AuthenticateAsServer(X509Certificate serverCertificate)
       at TransakcioClassLib.ServiceStream..ctor(Int64 id, NetworkStream networkStream, Boolean isSecure, X509Certificate2 serverCertificate) in c:\Developer\OmniPay\0-Development\OmniGateway\TransakcioClassLib\TransakcioClassLib\TransakcioClassLib.cs:line 6311
       at TransakcioClassLib.TransakcioServer.ProcessClientRequestBlocking() in c:\Developer\OmniPay\0-Development\OmniGateway\TransakcioClassLib\TransakcioClassLib\TransakcioClassLib.cs:line 2658
       at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()
  InnerException: System.ComponentModel.Win32Exception
       HResult=-2147467259
       Message=The function requested is not supported
       ErrorCode=-2147467259
       NativeErrorCode=-2146893054
       InnerException:

正如我之前提到的，服务一直运行良好，直到不久前。任何帮助将不胜感激。

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