WCF NetTcpBinding 外网连接不上

Question

wcf服务在内网是能够正常访问的，并且，外网服务器的端口也开了。
 
把服务放在外网就连接不上，服务端和客户端的SecurityMode都为None，以下是抛出的异常，求帮助，各种求，囧...Server stack trace: 
    在 System.ServiceModel.Channels.SocketConnectionInitiator.Connect(Uri uri, TimeSpan timeout)
    在 System.ServiceModel.Channels.BufferedConnectionInitiator.Connect(Uri uri, TimeSpan timeout)
    在 System.ServiceModel.Channels.ConnectionPoolHelper.EstablishConnection(TimeSpan timeout)
    在 System.ServiceModel.Channels.ClientFramingDuplexSessionChannel.OnOpen(TimeSpan timeout)
    在 System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
    在 System.ServiceModel.Channels.ServiceChannel.OnOpen(TimeSpan timeout)
    在 System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
    在 System.ServiceModel.Channels.CommunicationObject.Open()
 
 Exception rethrown at [0]: 
    在 System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
    在 System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
    在 System.ServiceModel.ICommunicationObject.Open()
    在 Castle.Facilities.WcfIntegration.WcfClientActivator.<>c__DisplayClass4.<GetChannelCreator>b__1()
    在 Castle.Facilities.WcfIntegration.WcfChannelHolder.CreateChannel()
    在 Castle.Facilities.WcfIntegration.WcfChannelHolder..ctor(ChannelCreator channelCreator, IWcfBurden burden, Nullable`1 closeTimeout)
    在 Castle.Facilities.WcfIntegration.WcfClientActivator.Instantiate(CreationContext context)
    在 Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.InternalCreate(CreationContext context)
    在 Castle.MicroKernel.ComponentActivator.AbstractComponentActivator.Create(CreationContext context)
    在 Castle.MicroKernel.Lifestyle.AbstractLifestyleManager.Resolve(CreationContext context)
    在 Castle.MicroKernel.Lifestyle.SingletonLifestyleManager.Resolve(CreationContext context)
    在 Castle.MicroKernel.Handlers.DefaultHandler.ResolveCore(CreationContext context, Boolean requiresDecommission, Boolean instanceRequired)
    在 Castle.MicroKernel.Handlers.AbstractHandler.Resolve(CreationContext context, Boolean instanceRequired)
    在 Castle.MicroKernel.Handlers.AbstractHandler.Resolve(CreationContext context)
    在 Castle.MicroKernel.DefaultKernel.ResolveComponent(IHandler handler, Type service, IDictionary additionalArguments)
    在 Castle.MicroKernel.DefaultKernel.ResolveComponent(IHandler handler, Type service)
    在 Castle.MicroKernel.DefaultKernel.Resolve(Type service)
    在 Castle.Windsor.WindsorContainer.Resolve[T]()

Answer 1

关键 nettcpbinding 是双工通道，服务端和客户端应该都在外网上。

Answer 2

是的 客户端能访问外网，就是客户端调用放在外网上的wcf服务就不行，报错：连接尝试持续了 00:00:21.0262027 时间跨度。TCP 错误代码 10060: 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。
还有，我还发现服务器上发布的服务  用localhost能访问，但是ip就不行