WCF times out when hitting return response.

So tried everything that is to find about the time out and maximum.
Can anyone see what is the problem?
When I call around 163 records no problem.
When I call more, it gives the time out error.

Thanks in advance

app.config

<bindings>
      <wsHttpBinding>
        <binding name="WSHttpBinding_IActionService" closeTimeout="00:10:00"
          openTimeout="00:10:00" receiveTimeout="00:10:00" sendTimeout="00:10:00"
          bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard"
          maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647"
          messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true"
          allowCookies="false">
          <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647"
            maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />
          <reliableSession ordered="true" inactivityTimeout="00:10:00"
            enabled="true" />
          <security mode="Message">
            <transport clientCredentialType="Windows" proxyCredentialType="None"
              realm="" />
            <message clientCredentialType="Windows" negotiateServiceCredential="true" />
          </security>
        </binding>
      </wsHttpBinding>
    </bindings>
    <behaviors>
      <serviceBehaviors>
        <behavior>
          <dataContractSerializer maxItemsInObjectGraph="2147483646" />
        </behavior>
      </serviceBehaviors>
    </behaviors>

web.config

<system.serviceModel>
    <services>
      <service behaviorConfiguration="behaviorAction" name="ActionService.ServiceImplementations.ActionService">
        <endpoint binding="wsHttpBinding" bindingConfiguration="bindingAction"
          contract="ActionService.ServiceContracts.IActionService">
          <identity>
            <dns value="localhost" />
          </identity>
        </endpoint>
        <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
        <host>
          <timeouts closeTimeout="00:10:00" openTimeout="00:10:00" />
        </host>
      </service>
    </services>
    <behaviors>
      <serviceBehaviors>
        <behavior name="behaviorAction">
          <serviceMetadata httpGetEnabled="true"/>
          <serviceDebug includeExceptionDetailInFaults="true"/>
          <dataContractSerializer maxItemsInObjectGraph="2147483646" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <bindings>
      <wsHttpBinding>
        <binding name="bindingAction" closeTimeout="00:10:00" openTimeout="00:10:00"
          receiveTimeout="00:10:00" sendTimeout="00:10:00" transactionFlow="false"
          maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647">
          <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647"
            maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />
          <reliableSession enabled="true" />
        </binding>
      </wsHttpBinding>
    </bindings>
  </system.serviceModel>

Sven Verschaeve, Aug 27, 2012