我不知道有没有人看过这个问题或有什么想法？
我们最近将ADFS从W2008r2上的ADFS 2.1迁移到了W2016上的ADFS 4.0上。
基本的function似乎很好，但我看到与所有依赖方信任更新联合元数据的问题; 尝试右键单击并select“从联合元数据更新…”（或去属性，监控，testingURL）给出以下错误：
"An error occurred during an attempt to read the federation metadata. Verify that the specified URL or host name is a valid metadata endpoint".
相关的错误信息是
Method not found: 'Microsoft.identitymodel.protocols.WSFederation.Metadata.MetadataBase Microsoft.Identity.Model.Protocols.WSFederation.Metadata.MetadataSerializer.ReadMetadata(System.IO.Stream)'.
没有代理服务器需要，没有定义代理服务器。 我可以在ADFS服务器的IE浏览器中浏览到联邦元数据URL，并获得预期的XML页面。 我已检查证书是否正确定义，ADFS服务帐户是否具有读取权限等
在服务启动或尝试testing/更新元数据时，事件日志中没有错误消息。 试图添加一个新的依赖方信任给出了相同的错误。
我运行了ADFS诊断程序，test-adfsserverhealth给出了一个我认为是关键的错误，但是我不知道下一步该怎么做。
Name : PingFederationMetadata Result : Fail Detail : System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a send. ---> System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host at System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags) at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) --- End of inner exception stack trace --- at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) at System.Net.FixedSizeReader.ReadPacket(Byte[] buffer, Int32 offset, Int32 count) 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.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.Net.TlsStream.ProcessAuthentication(LazyAsyncResult result) at System.Net.TlsStream.Write(Byte[] buffer, Int32 offset, Int32 size) at System.Net.ConnectStream.WriteHeaders(Boolean async) --- End of inner exception stack trace --- at System.Net.WebClient.DownloadDataInternal(Uri address, WebRequest& request) at System.Net.WebClient.DownloadData(Uri address) at CallSite.Target(Closure , CallSite , Object , Object ) Output : {PingFedmetadataException} ExceptionMessage :