本地IIS 运行没错，发布出去登陆后台时候出现问题。 [复制链接]

SocketException (0x274c): 由于连接方在一段时间后没有正确答复或连接的主机没有反应，连接尝试失败。 61.172.198.2050]
   System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress) +1073657
   System.Net.Sockets.Socket.InternalConnect(EndPoint remoteEP) +33
   System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Int32 timeout, Exception& exception) +217
[WebException: 无法连接到远程服务器]
   System.Net.HttpWebRequest.GetResponse() +1532114
   PageAdmin.masterlogin.Get_PageAdmin() +1610
   PageAdmin.masterlogin.Check_Version() +386
   PageAdmin.masterlogin.Page_Load(Object src, EventArgs e) +112
   System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +15
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +33
   System.Web.UI.Control.OnLoad(EventArgs e) +99
   System.Web.UI.Control.LoadRecursive() +47
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1436
这个是什么原因？在线等。谢谢啦