System.Net.WebException non è stata gestita
  Message="Impossibile effettuare la connessione al server remoto."
  Source="mscorlib"
  StackTrace:
    Server stack trace: 
       in System.Net.HttpWebRequest.GetRequestStream()
       in System.Runtime.Remoting.Channels.Http.HttpClientTransportSink.ProcessAndSend(IMessage msg, ITransportHeaders headers, Stream inputStream)
       in System.Runtime.Remoting.Channels.Http.HttpClientTransportSink.ProcessMessage(IMessage msg, ITransportHeaders requestHeaders, Stream requestStream, ITransportHeaders& responseHeaders, Stream& responseStream)
       in System.Runtime.Remoting.Channels.SoapClientFormatterSink.SyncProcessMessage(IMessage msg)
    Exception rethrown at [0]: 
       in System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
       in System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
       in MyRemotableType.MyRemotableType.threadwrite(Object obj)
       in System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       in System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       in System.Threading.ThreadHelper.ThreadStart(Object obj)