테스트 서버 중 하나에 wcf webservice가 있습니다. 프레임 워크 3.5에서 3.5 sp1로 업그레이드 할 때까지 모든 것이 잘 작동했습니다. wcf 웹 서비스가 작동을 멈추고 오류를 반환합니다.프레임 워크 3.5로 업그레이드 한 후 WCF webservice 작동이 중지됩니다. sp1
"Failed to invoke the service. The service may be offline or inaccessible. Refer to the stack trace for details."
"The remote server returned an unexpected response: (502) Proxy Error (The specified network name is no longer available. ).
Server stack trace: at System.ServiceModel.Channels.HttpChannelUtilities.ValidateRequestReplyResponse(HttpWebRequest request, HttpWebResponse response, HttpChannelFactory factory, WebException responseException) at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout) at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout) at System.ServiceModel.Dispatcher.RequestChannelBinder.Request(Message message, TimeSpan timeout) at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout) at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs) at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation) at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)"
여기에 무슨 일이 일어나는 지 아는 사람 있습니까?