hi,

I am getting this error in my service when I try to connect a client to it.

I don't understand how the client is trying a singleton mode connection if
the default InstanceContextMode is PerSession. I have not set any
servicebehaviors on my service.

thanks,
-amol

System.ServiceModel.Channels.ConnectionOrientedTransportManager`1.OnGetSingletonMessageHandler(ServerSingletonPreambleConnectionReader
serverSingletonPreambleReader)
System.ServiceModel.Channels.ConnectionDemuxer.OnSingletonPreambleKnown(ServerSingletonPreambleConnectionReader serverSingletonPreambleReader)
System.ServiceModel.Channels.ServerSingletonPreambleConnectionReader.ReadAndDispatch()
System.ServiceModel.Channels.ServerSingletonPreambleConnectionReader.StartReading(OnViaDelegate viaDelegate, TimeSpan timeout)
System.ServiceModel.Channels.ConnectionDemuxer.OnSingletonConnection(IConnection
connection, ItemDequeuedCallback connectionDequeuedCallback, Int64
streamPosition, Int32 offset, Int32 size, TimeSpan timeout)
System.ServiceModel.Channels.ConnectionDemuxer.OnConnectionModeKnownCore(ConnectionModeReader modeReader, Boolean isCached)

server configuration:
<system.serviceModel>
   <bindings>
     <netTcpBinding>
       <binding name="streamedtcp"
                transferMode="StreamedRequest">
       </binding>
     </netTcpBinding>
   </bindings>
   <services>
     <service name="LogProcessor.EtlLogProcessor"
              behaviorConfiguration="metadataSupport">
       <host>
         <baseAddresses>
           <add baseAddress="net.tcp://localhost:9090/LogProcessor"/>
         </baseAddresses>
       </host>
       <endpoint address="mex"
                 binding="mexTcpBinding"
                 contract="IMetadataExchange" />
       <endpoint address=""
                 binding="netTcpBinding"
                 name="streamedtcp"
                 contract= "LogProcessor.IEtlLogProcessor" />
     </service>
   </services>
   <behaviors>
     <serviceBehaviors>
       <behavior name="metadataSupport">
         <serviceMetadata/>
         <serviceDebug includeExceptionDetailInFaults="true"/>
       </behavior>
     </serviceBehaviors>
   </behaviors>
 </system.serviceModel>

client configuration (proxy generated with svcutil, but the config was
wrong, so I hand-created this one)

<system.serviceModel>
   <bindings>
     <netTcpBinding>
       <binding name="streamedtcp"
           transferMode="StreamedRequest">
         <reliableSession ordered="true" inactivityTimeout="00:10:00"
             enabled="false" />
         <security mode="Transport">
           <transport clientCredentialType="Windows"
protectionLevel="EncryptAndSign" />
           <message clientCredentialType="Windows" />
         </security>
       </binding>
     </netTcpBinding>
   </bindings>
   <client>
     <endpoint address="net.tcp://localhost:9090/LogProcessor"
binding="netTcpBinding"
         bindingConfiguration="streamedtcp" contract="IEtlLogProcessor"
         name="streamedtcp">
       <identity>
         <userPrincipalName value="amol.deshpande@flagship.lcl" />
       </identity>
     </endpoint>
   </client>
 </system.serviceModel>