My Bad – I forgot to apply my binding configuration to my endpoint in my server-side config. The server config should read:
<system.serviceModel>
<bindings>
<netTcpBinding>
<binding name="NetTcpBinding_ImageResizerServiceContract" closeTimeout="00:01:00"
openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
transactionFlow="false" transferMode="Buffered" transactionProtocol="OleTransactions"
hostNameComparisonMode="StrongWildcard" listenBacklog="10"
maxBufferPoolSize="2147483647" maxBufferSize="2147483647" maxConnections="10"
maxReceivedMessageSize="2147483647">
<readerQuotas maxDepth="2147483647"
maxStringContentLength="2147483647"
maxArrayLength="2147483647"
maxBytesPerRead="2147483647"
maxNameTableCharCount="2147483647" />
<reliableSession ordered="true" inactivityTimeout="00:10:00" enabled="false" />
<security mode="Transport">
<transport clientCredentialType="Windows" protectionLevel="EncryptAndSign" />
<message clientCredentialType="Windows" />
</security>
</binding>
</netTcpBinding>
</bindings>
<behaviors>
<serviceBehaviors>
<behavior name="ServiceBehavior">
<serviceMetadata httpGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="false" />
</behavior>
</serviceBehaviors>
</behaviors>
<services>
<service name="LogoResizer.WCF.ServiceTypes.ImageResizerService" behaviorConfiguration="ServiceBehavior">
<host>
<baseAddresses>
<add baseAddress="http://localhost:900/mex/"/>
<add baseAddress="net.tcp://localhost:9000/" />
</baseAddresses>
</host>
<endpoint bindingConfiguration="NetTcpBinding_ImageResizerServiceContract" binding="netTcpBinding" contract="LogoResizer.WCF.ServiceContracts.IImageResizerService" />
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
</service>
</services>
</system.serviceModel>
Note the bindingConfiguration=”NetTcpBinding_ImageResizerServiceContract” has been added to the netTcp endpoint. My app now works with larger images. Sweet.