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POWCF Net.tcp service randomly faults
 

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    <p>This code is slightly modified and almost taken straight from examples off the internet of getting a net.tcp duplex service running with a publish / subscribe mechanism. This works great for awhile but clients randomly fault the channel being used to communicate. Some clients are still good for communication 24 - 48 hours before faulting. Question: Does anyone know why the socket is randomly being aborted or even how to find out what exactly is causing exception in the error logs? </p> <pre><code> using System; using System.Collections.Generic; using System.Linq; using System.Runtime.Serialization; using System.ServiceModel; using System.ServiceModel.Web; using System.Text; namespace WcfService1 { [ServiceContract(CallbackContract = typeof(IClientCallBack))] interface IService { //The Alert Server Function called by the Client [OperationContract(IsOneWay = true)] void SubscribeToBeNotifiedServer(string EmpID); [OperationContract(IsOneWay = true)] void UpdatePricingServer(string ReservationID, string CustomerID); [OperationContract(IsOneWay = true)] void SendMessageToNotifyOther(string From, string To, string Message); } [ServiceContract] public interface IClientCallBack { [OperationContract()] [FaultContract(typeof(InvalidOperationException))] void UpdatePricingClient(string FromReservationID, string CustomerID ); //The Alert Server Function called by the Client [OperationContract(IsOneWay = true)] void SubscribeToBeNotifiedClient(); [OperationContract()] [FaultContract(typeof(InvalidOperationException))] void ReceiveMessage(string From, string Message); } [ServiceBehavior( ConcurrencyMode = ConcurrencyMode.Reentrant,UseSynchronizationContext = false, InstanceContextMode = InstanceContextMode.Single, IncludeExceptionDetailInFaults=true )] [CallbackBehavior(UseSynchronizationContext = false)] class Service1 : IService { public Service1() { } public void SubscribeToBeNotifiedServer(string EmpID) { var added = OperationContext.Current.GetCallbackChannel&lt;IClientCallBack&gt;(); var st = OperationContext.Current.InstanceContext.State; var asdf1 = OperationContext.Current.Host.State; if (!subscribers.Select(x =&gt; x.CallBackInformation).Contains(added)) { subscribers.Add(new ClientInfo(added, OperationContext.Current, EmpID)); OperationContext.Current.Channel.Faulted += new EventHandler(Channel_Faulted); } } private static readonly List&lt;ClientInfo&gt; subscribers = new List&lt;ClientInfo&gt;(); public void UpdatePricingServer(string ReservationID, string CustomerID) { try { List&lt;ClientInfo&gt; Remove = new List&lt;ClientInfo&gt;(); Action&lt;ClientInfo&gt; invoke = delegate(ClientInfo callback) { //I wrapped this in its own thread as the entire thread gets torn down if there is an exception // when you call the client. This is true even if its in a try catch the entire thread dies. System.Threading.Thread mythread = new System.Threading.Thread((System.Threading.ThreadStart)delegate() { try { var test = (ICommunicationObject)callback.CallBackInformation; if (test.State == CommunicationState.Opened &amp;&amp; callback.InstanceContext.Host.State == CommunicationState.Opened) { callback.CallBackInformation.UpdatePricingClient(ReservationID, CustomerID); } else { Remove.Add(callback); } } catch (FaultException&lt;InvalidOperationException&gt; exception) { } catch (FaultException exception) { } catch (CommunicationException exception) { } }); mythread.Start(); }; subscribers.ForEach(invoke); foreach (var temp1 in Remove) { subscribers.Remove(temp1); } } catch (Exception ex) { } } public void SendMessageToNotifyOther(string From, string To, string Message) { try { List&lt;ClientInfo&gt; Remove = new List&lt;ClientInfo&gt;(); Action&lt;ClientInfo&gt; invoke = delegate(ClientInfo callback) { //I wrapped this in its own thread as the entire thread gets torn down if there is an exception // when you call the client. This is true even if its in a try catch the entire thread dies. System.Threading.Thread mythread = new System.Threading.Thread((System.Threading.ThreadStart)delegate() { try { var test = (ICommunicationObject)callback.CallBackInformation; if (test.State == CommunicationState.Opened &amp;&amp; callback.InstanceContext.Host.State == CommunicationState.Opened) { if (callback.EmployeeID == To) { callback.CallBackInformation.ReceiveMessage(From, Message); } } else { Remove.Add(callback); } } catch (FaultException&lt;InvalidOperationException&gt; exception) { } catch (FaultException exception) { } catch (CommunicationException exception) { } }); mythread.Start(); }; subscribers.ForEach(invoke); foreach (var temp1 in Remove) { subscribers.Remove(temp1); } } catch (Exception ex) { } } #region IService Members void Channel_Faulted(object sender, EventArgs e) { ICommunicationObject myobj = (ICommunicationObject)sender; myobj.Abort(); myobj.Close(); } void InstanceContext_Closing(object sender, EventArgs e) { try { subscribers.Remove(subscribers.Where(x =&gt; x.CallBackInformation == sender).FirstOrDefault()); } catch { } } void Channel_Closed(object sender, EventArgs e) { try { subscribers.Remove(subscribers.Where(x =&gt; x.CallBackInformation == sender).FirstOrDefault()); } catch { } } void InstanceContext_Closed(object sender, EventArgs e) { try { subscribers.Remove(subscribers.Where(x =&gt; x.CallBackInformation == sender).FirstOrDefault()); } catch { } } void InstanceContext_Faulted(object sender, EventArgs e) { try { subscribers.Remove(subscribers.Where(x =&gt; x.CallBackInformation == sender).FirstOrDefault()); } catch { } } #endregion } public class ClientInfo { IClientCallBack client; OperationContext context; public ClientInfo(IClientCallBack clientcall, OperationContext Instance, string EmpID) { this.client = clientcall; this.context = Instance; this.EmployeeID = EmpID; } public IClientCallBack CallBackInformation { get { return client; } set { this.client = value; } } public OperationContext InstanceContext { get { return context; } set { this.context = value; } } public string EmployeeID; } } </code></pre> <p>Here is the web.config of the Server</p> <pre><code> &lt;?xml version="1.0"?&gt; &lt;configuration&gt; &lt;system.web&gt; &lt;compilation debug="true" targetFramework="4.0" /&gt; &lt;customErrors mode="Off"&gt; &lt;/customErrors&gt; &lt;/system.web&gt; &lt;system.serviceModel&gt; &lt;!--WcfService1.IService--&gt; &lt;services&gt; &lt;service behaviorConfiguration="MyBehavior" name="WcfService1.Service1"&gt; &lt;endpoint address="" binding="netTcpBinding" bindingConfiguration="portSharingBinding" name="MyServiceEndpoint" contract="WcfService1.IService"&gt; &lt;identity&gt; &lt;!--&lt;dns value="localhost:808" /&gt;--&gt; &lt;/identity&gt; &lt;/endpoint&gt; &lt;endpoint address="/mex" kind="mexEndpoint" binding="mexTcpBinding" contract="IMetadataExchange" /&gt; &lt;host&gt; &lt;baseAddresses&gt; &lt;!--&lt;add baseAddress="net.tcp://iiswatso/MnetTcp/Service1.svc" /&gt;--&gt; &lt;add baseAddress="net.tcp://localhost/WcfService/Service1.svc" /&gt; &lt;/baseAddresses&gt; &lt;/host&gt; &lt;/service&gt; &lt;/services&gt; &lt;behaviors&gt; &lt;serviceBehaviors&gt; &lt;behavior name="MyBehavior" &gt; &lt;serviceTimeouts /&gt; &lt;serviceMetadata httpGetEnabled="false" /&gt; &lt;serviceDebug includeExceptionDetailInFaults="true" /&gt; &lt;/behavior&gt; &lt;/serviceBehaviors&gt; &lt;/behaviors&gt; &lt;bindings&gt; &lt;netTcpBinding&gt; &lt;binding name="portSharingBinding" portSharingEnabled="true" openTimeout="infinite" closeTimeout="infinite" receiveTimeout="infinite" sendTimeout="infinite" &gt; &lt;reliableSession inactivityTimeout="infinite" ordered="True" enabled="true" /&gt; &lt;security mode="None"&gt;&lt;/security&gt; &lt;/binding&gt; &lt;/netTcpBinding&gt; &lt;/bindings&gt; &lt;/system.serviceModel&gt; &lt;system.webServer&gt; &lt;/system.webServer&gt; &lt;system.diagnostics&gt; &lt;trace autoflush="true"&gt;&lt;/trace&gt; &lt;sources&gt; &lt;source name="System.ServiceModel" switchValue="Information, ActivityTracing" propagateActivity="true"&gt; &lt;listeners&gt; &lt;add name="traceListener" type="System.Diagnostics.XmlWriterTraceListener" initializeData="c:\log\Server3.svclog" /&gt; &lt;/listeners&gt; &lt;/source&gt; &lt;/sources&gt; &lt;/system.diagnostics&gt; &lt;/configuration&gt; </code></pre> <p>Here is the tracing log for the server:</p> <pre><code> &lt;E2ETraceEvent xmlns="http://schemas.microsoft.com/2004/06/E2ETraceEvent"&gt; &lt;System xmlns="http://schemas.microsoft.com/2004/06/windows/eventlog/system"&gt; &lt;EventID&gt;131075&lt;/EventID&gt; &lt;Type&gt;3&lt;/Type&gt; &lt;SubType Name="Error"&gt;0&lt;/SubType&gt; &lt;Level&gt;2&lt;/Level&gt; &lt;TimeCreated SystemTime="2012-05-30T18:11:10.9002453Z" /&gt; &lt;Source Name="System.ServiceModel" /&gt; &lt;Correlation ActivityID="{00000000-0000-0000-0000-000000000000}" /&gt; &lt;Execution ProcessName="Meridian Reservation System.vshost" ProcessID="10676" ThreadID="21" /&gt; &lt;Channel /&gt; &lt;Computer&gt;JIMMY-PC&lt;/Computer&gt; &lt;/System&gt; &lt;ApplicationData&gt; &lt;TraceData&gt; &lt;DataItem&gt; &lt;TraceRecord xmlns="http://schemas.microsoft.com/2004/10/E2ETraceEvent/TraceRecord" Severity="Error"&gt; &lt;TraceIdentifier&gt;http://msdn.microsoft.com/en-US/library/System.ServiceModel.Diagnostics.ThrowingException.aspx&lt;/TraceIdentifier&gt; &lt;Description&gt;Throwing an exception.&lt;/Description&gt; &lt;AppDomain&gt;Meridian Reservation System.vshost.exe&lt;/AppDomain&gt; &lt;Exception&gt; &lt;ExceptionType&gt;System.ServiceModel.CommunicationException, System.ServiceModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089&lt;/ExceptionType&gt; &lt;Message&gt;The socket connection was aborted. This could be caused by an error processing your message or a receive timeout being exceeded by the remote host, or an underlying network resource issue. Local socket timeout was '10675199.02:48:05.4775807'.&lt;/Message&gt; &lt;StackTrace&gt; at System.ServiceModel.Channels.SocketConnection.BeginReadCore(Int32 offset, Int32 size, TimeSpan timeout, WaitCallback callback, Object state) at System.ServiceModel.Channels.SocketConnection.BeginRead(Int32 offset, Int32 size, TimeSpan timeout, WaitCallback callback, Object state) at System.ServiceModel.Channels.DelegatingConnection.BeginRead(Int32 offset, Int32 size, TimeSpan timeout, WaitCallback callback, Object state) at System.ServiceModel.Channels.SessionConnectionReader.BeginReceive(TimeSpan timeout, WaitCallback callback, Object state) at System.ServiceModel.Channels.SynchronizedMessageSource.ReceiveAsyncResult.PerformOperation(TimeSpan timeout) at System.ServiceModel.Channels.SynchronizedMessageSource.SynchronizedAsyncResult`1..ctor(SynchronizedMessageSource syncSource, TimeSpan timeout, AsyncCallback callback, Object state) at System.ServiceModel.Channels.SynchronizedMessageSource.ReceiveAsyncResult..ctor(SynchronizedMessageSource syncSource, TimeSpan timeout, AsyncCallback callback, Object state) at System.ServiceModel.Channels.SynchronizedMessageSource.BeginReceive(TimeSpan timeout, AsyncCallback callback, Object state) at System.ServiceModel.Channels.FramingDuplexSessionChannel.BeginReceive(TimeSpan timeout, AsyncCallback callback, Object state) at System.ServiceModel.Channels.FramingDuplexSessionChannel.TryReceiveAsyncResult..ctor(FramingDuplexSessionChannel channel, TimeSpan timeout, AsyncCallback callback, Object state) at System.ServiceModel.Channels.FramingDuplexSessionChannel.BeginTryReceive(TimeSpan timeout, AsyncCallback callback, Object state) at System.ServiceModel.Channels.ClientReliableChannelBinder`1.DuplexClientReliableChannelBinder`1.OnBeginTryReceive(TDuplexChannel channel, TimeSpan timeout, AsyncCallback callback, Object state) at System.ServiceModel.Channels.ReliableChannelBinder`1.TryReceiveAsyncResult.BeginInput(ReliableChannelBinder`1 binder, TChannel channel, TimeSpan timeout, AsyncCallback callback, Object state) at System.ServiceModel.Channels.ReliableChannelBinder`1.InputAsyncResult`1.CompleteTryGetChannel(IAsyncResult result, Boolean&amp;amp; complete) at System.ServiceModel.Channels.ReliableChannelBinder`1.InputAsyncResult`1.Start() at System.ServiceModel.Channels.ReliableChannelBinder`1.TryReceiveAsyncResult..ctor(ReliableChannelBinder`1 binder, TimeSpan timeout, MaskingMode maskingMode, AsyncCallback callback, Object state) at System.ServiceModel.Channels.ReliableChannelBinder`1.BeginTryReceive(TimeSpan timeout, MaskingMode maskingMode, AsyncCallback callback, Object state) at System.ServiceModel.Channels.ReliableChannelBinder`1.BeginTryReceive(TimeSpan timeout, AsyncCallback callback, Object state) at System.ServiceModel.Channels.ReliableDuplexSessionChannel.StartReceiving(Boolean canBlock) at System.ServiceModel.Channels.ReliableDuplexSessionChannel.HandleReceiveComplete(IAsyncResult result) at System.ServiceModel.Channels.ReliableDuplexSessionChannel.OnReceiveCompletedStatic(IAsyncResult result) at System.Runtime.Fx.AsyncThunk.UnhandledExceptionFrame(IAsyncResult result) at System.Runtime.AsyncResult.Complete(Boolean completedSynchronously) at System.Runtime.AsyncResult.Complete(Boolean completedSynchronously, Exception exception) at System.ServiceModel.Channels.ReliableChannelBinder`1.InputAsyncResult`1.OnInputComplete(IAsyncResult result) at System.ServiceModel.Channels.ReliableChannelBinder`1.InputAsyncResult`1.OnInputCompleteStatic(IAsyncResult result) at System.Runtime.Fx.AsyncThunk.UnhandledExceptionFrame(IAsyncResult result) at System.Runtime.AsyncResult.Complete(Boolean completedSynchronously) at System.Runtime.AsyncResult.Complete(Boolean completedSynchronously, Exception exception) at System.ServiceModel.Channels.FramingDuplexSessionChannel.TryReceiveAsyncResult.OnReceive(IAsyncResult result) at System.Runtime.Fx.AsyncThunk.UnhandledExceptionFrame(IAsyncResult result) at System.Runtime.AsyncResult.Complete(Boolean completedSynchronously) at System.Runtime.AsyncResult.Complete(Boolean completedSynchronously, Exception exception) at System.ServiceModel.Channels.SynchronizedMessageSource.SynchronizedAsyncResult`1.CompleteWithUnlock(Boolean synchronous, Exception exception) at System.ServiceModel.Channels.SynchronizedMessageSource.ReceiveAsyncResult.OnReceiveComplete(Object state) at System.ServiceModel.Channels.SessionConnectionReader.OnAsyncReadComplete(Object state) at System.ServiceModel.Channels.SocketConnection.FinishRead() at System.ServiceModel.Channels.SocketConnection.AsyncReadCallback(Boolean haveResult, Int32 error, Int32 bytesRead) at System.ServiceModel.Channels.OverlappedContext.CompleteCallback(UInt32 error, UInt32 numBytes, NativeOverlapped* nativeOverlapped) at System.Runtime.Fx.IOCompletionThunk.UnhandledExceptionFrame(UInt32 error, UInt32 bytesRead, NativeOverlapped* nativeOverlapped) at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* pOVERLAP) &lt;/StackTrace&gt; &lt;ExceptionString&gt;System.ServiceModel.CommunicationException: The socket connection was aborted. This could be caused by an error processing your message or a receive timeout being exceeded by the remote host, or an underlying network resource issue. Local socket timeout was '10675199.02:48:05.4775807'. ---&amp;gt; System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host --- End of inner exception stack trace ---&lt;/ExceptionString&gt; &lt;InnerException&gt; &lt;ExceptionType&gt;System.Net.Sockets.SocketException, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089&lt;/ExceptionType&gt; &lt;Message&gt;An existing connection was forcibly closed by the remote host&lt;/Message&gt; &lt;StackTrace&gt; at System.ServiceModel.Channels.SocketConnection.BeginReadCore(Int32 offset, Int32 size, TimeSpan timeout, WaitCallback callback, Object state) at System.ServiceModel.Channels.SocketConnection.BeginRead(Int32 offset, Int32 size, TimeSpan timeout, WaitCallback callback, Object state) at System.ServiceModel.Channels.DelegatingConnection.BeginRead(Int32 offset, Int32 size, TimeSpan timeout, WaitCallback callback, Object state) at System.ServiceModel.Channels.SessionConnectionReader.BeginReceive(TimeSpan timeout, WaitCallback callback, Object state) at System.ServiceModel.Channels.SynchronizedMessageSource.ReceiveAsyncResult.PerformOperation(TimeSpan timeout) at System.ServiceModel.Channels.SynchronizedMessageSource.SynchronizedAsyncResult`1..ctor(SynchronizedMessageSource syncSource, TimeSpan timeout, AsyncCallback callback, Object state) at System.ServiceModel.Channels.SynchronizedMessageSource.ReceiveAsyncResult..ctor(SynchronizedMessageSource syncSource, TimeSpan timeout, AsyncCallback callback, Object state) at System.ServiceModel.Channels.SynchronizedMessageSource.BeginReceive(TimeSpan timeout, AsyncCallback callback, Object state) at System.ServiceModel.Channels.FramingDuplexSessionChannel.BeginReceive(TimeSpan timeout, AsyncCallback callback, Object state) at System.ServiceModel.Channels.FramingDuplexSessionChannel.TryReceiveAsyncResult..ctor(FramingDuplexSessionChannel channel, TimeSpan timeout, AsyncCallback callback, Object state) at System.ServiceModel.Channels.FramingDuplexSessionChannel.BeginTryReceive(TimeSpan timeout, AsyncCallback callback, Object state) at System.ServiceModel.Channels.ClientReliableChannelBinder`1.DuplexClientReliableChannelBinder`1.OnBeginTryReceive(TDuplexChannel channel, TimeSpan timeout, AsyncCallback callback, Object state) at System.ServiceModel.Channels.ReliableChannelBinder`1.TryReceiveAsyncResult.BeginInput(ReliableChannelBinder`1 binder, TChannel channel, TimeSpan timeout, AsyncCallback callback, Object state) at System.ServiceModel.Channels.ReliableChannelBinder`1.InputAsyncResult`1.CompleteTryGetChannel(IAsyncResult result, Boolean&amp;amp; complete) at System.ServiceModel.Channels.ReliableChannelBinder`1.InputAsyncResult`1.Start() at System.ServiceModel.Channels.ReliableChannelBinder`1.TryReceiveAsyncResult..ctor(ReliableChannelBinder`1 binder, TimeSpan timeout, MaskingMode maskingMode, AsyncCallback callback, Object state) at System.ServiceModel.Channels.ReliableChannelBinder`1.BeginTryReceive(TimeSpan timeout, MaskingMode maskingMode, AsyncCallback callback, Object state) at System.ServiceModel.Channels.ReliableChannelBinder`1.BeginTryReceive(TimeSpan timeout, AsyncCallback callback, Object state) at System.ServiceModel.Channels.ReliableDuplexSessionChannel.StartReceiving(Boolean canBlock) at System.ServiceModel.Channels.ReliableDuplexSessionChannel.HandleReceiveComplete(IAsyncResult result) at System.ServiceModel.Channels.ReliableDuplexSessionChannel.OnReceiveCompletedStatic(IAsyncResult result) at System.Runtime.Fx.AsyncThunk.UnhandledExceptionFrame(IAsyncResult result) at System.Runtime.AsyncResult.Complete(Boolean completedSynchronously) at System.Runtime.AsyncResult.Complete(Boolean completedSynchronously, Exception exception) at System.ServiceModel.Channels.ReliableChannelBinder`1.InputAsyncResult`1.OnInputComplete(IAsyncResult result) at System.ServiceModel.Channels.ReliableChannelBinder`1.InputAsyncResult`1.OnInputCompleteStatic(IAsyncResult result) at System.Runtime.Fx.AsyncThunk.UnhandledExceptionFrame(IAsyncResult result) at System.Runtime.AsyncResult.Complete(Boolean completedSynchronously) at System.Runtime.AsyncResult.Complete(Boolean completedSynchronously, Exception exception) at System.ServiceModel.Channels.FramingDuplexSessionChannel.TryReceiveAsyncResult.OnReceive(IAsyncResult result) at System.Runtime.Fx.AsyncThunk.UnhandledExceptionFrame(IAsyncResult result) at System.Runtime.AsyncResult.Complete(Boolean completedSynchronously) at System.Runtime.AsyncResult.Complete(Boolean completedSynchronously, Exception exception) at System.ServiceModel.Channels.SynchronizedMessageSource.SynchronizedAsyncResult`1.CompleteWithUnlock(Boolean synchronous, Exception exception) at System.ServiceModel.Channels.SynchronizedMessageSource.ReceiveAsyncResult.OnReceiveComplete(Object state) at System.ServiceModel.Channels.SessionConnectionReader.OnAsyncReadComplete(Object state) at System.ServiceModel.Channels.SocketConnection.FinishRead() at System.ServiceModel.Channels.SocketConnection.AsyncReadCallback(Boolean haveResult, Int32 error, Int32 bytesRead) at System.ServiceModel.Channels.OverlappedContext.CompleteCallback(UInt32 error, UInt32 numBytes, NativeOverlapped* nativeOverlapped) at System.Runtime.Fx.IOCompletionThunk.UnhandledExceptionFrame(UInt32 error, UInt32 bytesRead, NativeOverlapped* nativeOverlapped) at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* pOVERLAP) &lt;/StackTrace&gt; &lt;ExceptionString&gt;System.Net.Sockets.SocketException (0x80004005): An existing connection was forcibly closed by the remote host&lt;/ExceptionString&gt; &lt;NativeErrorCode&gt;2746&lt;/NativeErrorCode&gt; &lt;/InnerException&gt; &lt;/Exception&gt; &lt;/TraceRecord&gt; &lt;/DataItem&gt; &lt;/TraceData&gt; &lt;/ApplicationData&gt; &lt;/E2ETraceEvent&gt; </code></pre> <p>Tracing for the client:</p> <pre><code> &lt;E2ETraceEvent xmlns="http://schemas.microsoft.com/2004/06/E2ETraceEvent"&gt; &lt;System xmlns="http://schemas.microsoft.com/2004/06/windows/eventlog/system"&gt; &lt;EventID&gt;131075&lt;/EventID&gt; &lt;Type&gt;3&lt;/Type&gt; &lt;SubType Name="Error"&gt;0&lt;/SubType&gt; &lt;Level&gt;2&lt;/Level&gt; &lt;TimeCreated SystemTime="2012-05-30T18:11:02.2488000Z" /&gt; &lt;Source Name="System.ServiceModel" /&gt; &lt;Correlation ActivityID="{54830e63-b315-4f74-9455-d9ba50c655c0}" /&gt; &lt;Execution ProcessName="w3wp" ProcessID="2716" ThreadID="6" /&gt; &lt;Channel /&gt; &lt;Computer&gt;IISWATSO&lt;/Computer&gt; &lt;/System&gt; &lt;ApplicationData&gt; &lt;TraceData&gt; &lt;DataItem&gt; &lt;TraceRecord xmlns="http://schemas.microsoft.com/2004/10/E2ETraceEvent/TraceRecord" Severity="Error"&gt; &lt;TraceIdentifier&gt;http://msdn.microsoft.com/en-US/library/System.ServiceModel.Diagnostics.ThrowingException.aspx&lt;/TraceIdentifier&gt; &lt;Description&gt;Throwing an exception.&lt;/Description&gt; &lt;AppDomain&gt;/LM/W3SVC/3/ROOT/MNetTcp-1-129828750305652000&lt;/AppDomain&gt; &lt;Exception&gt; &lt;ExceptionType&gt;System.ServiceModel.CommunicationException, System.ServiceModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089&lt;/ExceptionType&gt; &lt;Message&gt;The socket connection was aborted. This could be caused by an error processing your message or a receive timeout being exceeded by the remote host, or an underlying network resource issue. Local socket timeout was '10675199.02:48:05.4775807'.&lt;/Message&gt; &lt;StackTrace&gt; at System.ServiceModel.Channels.SocketConnection.EndRead() at System.ServiceModel.Channels.TracingConnection.EndRead() at System.ServiceModel.Channels.SessionConnectionReader.OnAsyncReadComplete(Object state) at System.ServiceModel.Channels.TracingConnection.TracingConnectionState.ExecuteCallback() at System.ServiceModel.Channels.SocketConnection.AsyncReadCallback(Boolean haveResult, Int32 error, Int32 bytesRead) at System.Runtime.Fx.IOCompletionThunk.UnhandledExceptionFrame(UInt32 error, UInt32 bytesRead, NativeOverlapped* nativeOverlapped) at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* pOVERLAP) &lt;/StackTrace&gt; &lt;ExceptionString&gt;System.ServiceModel.CommunicationException: The socket connection was aborted. This could be caused by an error processing your message or a receive timeout being exceeded by the remote host, or an underlying network resource issue. Local socket timeout was '10675199.02:48:05.4775807'. ---&amp;gt; System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host --- End of inner exception stack trace ---&lt;/ExceptionString&gt; &lt;InnerException&gt; &lt;ExceptionType&gt;System.Net.Sockets.SocketException, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089&lt;/ExceptionType&gt; &lt;Message&gt;An existing connection was forcibly closed by the remote host&lt;/Message&gt; &lt;StackTrace&gt; at System.ServiceModel.Channels.SocketConnection.EndRead() at System.ServiceModel.Channels.TracingConnection.EndRead() at System.ServiceModel.Channels.SessionConnectionReader.OnAsyncReadComplete(Object state) at System.ServiceModel.Channels.TracingConnection.TracingConnectionState.ExecuteCallback() at System.ServiceModel.Channels.SocketConnection.AsyncReadCallback(Boolean haveResult, Int32 error, Int32 bytesRead) at System.Runtime.Fx.IOCompletionThunk.UnhandledExceptionFrame(UInt32 error, UInt32 bytesRead, NativeOverlapped* nativeOverlapped) at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, Nativ </code></pre>
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    1. COHow is this overly broad? The code itself is from sample code from microsoft very very slightly modified. Its the most simplified version of getting a net.tcp duplex service running. I've listed everything I know about the problem here - not a real question? My question is pretty real and pretty clear - why the heck is this simple service randomly faulting.
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    2. COWhen I solve this problem I'll post here.
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    3. COAlso, I wanted to add that this post took me more time to put together than the time it took for some moderator to close it. I will resolve this issue and post here for other to see. But I will not be using this site anymore. If a question isn't good let the community let me know - not some dictator. Good luck and thanks for all the fish.
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