WCF hosting issues

Hi I wonder if someone can help me, I've been banging my head against the wall trying to solve this but no luck yet :( I have a WCF hosted on IIS6 on a remote server on our internal network, http://systemservices/ServiceManagerServices.svc. I can access the service in my browser, however when trying to send a request using WcfTestClient, i get the following error:

> Error: Cannot obtain Metadata from
> http://systemservices/ServiceManagerServices.svc If this is a Windows
> (R) Communication Foundation service to which you have access, please
> check that you have enabled metadata publishing at the specified
> address.  For help enabling metadata publishing, please refer to the
> MSDN documentation at
> http://go.microsoft.com/fwlink/?LinkId=65455.WS-Metadata Exchange
> Error    URI: http://systemservices/ServiceManagerServices.svc   
> Metadata contains a reference that cannot be resolved:
> 'http://systemservices/ServiceManagerServices.svc'.    There was no
> endpoint listening at http://systemservices/ServiceManagerServices.svc
> that could accept the message. This is often caused by an incorrect
> address or SOAP action. See InnerException, if present, for more
> details.    Unable to connect to the remote server    No connection
> could be made because the target machine actively refused it
> 172.16.25.221:80HTTP GET Error    URI: http://systemservices/ServiceManagerServices.svc    There was an error
> downloading 'http://systemservices/ServiceManagerServices.svc'.   
> Unable to connect to the remote server    No connection could be made
> because the target machine actively refused it 172.16.25.221:80

I have tried changing my web.config to so many different values it is untrue, however nothing! Any ideas would be really welcome!!!

This is my web.config

<?xml version="1.0"?>
<configuration>
    <configSections>
        <sectionGroup name="applicationSettings" type="System.Configuration.ApplicationSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" >
            <section name="ServiceManager.Services.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
        </sectionGroup>
    </configSections>
    <system.web>
        <customErrors mode="Off"/>
        <compilation debug="true" targetFramework="4.0" />
    </system.web>
    <system.serviceModel>
        <services>
            <service name="ServiceManager.Services.ServiceManagerServices" behaviorConfiguration="WCFServiceBehavior">
                <endpoint address="" binding="wsHttpBinding" contract="ServiceManager.Services.IServiceManagerServices" />
                <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
            </service>
        </services>
        <behaviors>
            <serviceBehaviors>
                <behavior name="WCFServiceBehavior">
                    <serviceMetadata httpGetEnabled="True"/>
                    <serviceDebug includeExceptionDetailInFaults="True" />
                </behavior>
            </serviceBehaviors>
        </behaviors>
    </system.serviceModel>
    <system.webServer>
        <modules runAllManagedModulesForAllRequests="true"/>
    </system.webServer>
</configuration>

Solution

Since you can't connect, it could be an access restriction, but this message can show when you've been kicked back for other issues, so this could be a missing referenced binary, or use of an invalid DataContract or something similar.

Firstly, turn on some diagnostics:

<system.diagnostics>
  <sources>
    <source name="System.ServiceModel" switchValue="Warning, ActivityTracing" propagateActivity="true">
      <listeners>
        <add type="System.Diagnostics.DefaultTraceListener" name="Default">
          <filter type="" />
        </add>
        <add name="ServiceModelTraceListener">
          <filter type="" />
        </add>
      </listeners>
    </source>
  </sources>
  <sharedListeners>
    <add initializeData="path\to\trace.svclog"
      type="System.Diagnostics.XmlWriterTraceListener, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
    name="ServiceModelTraceListener" traceOutputOptions="Timestamp">
    <filter type="" />
  </add>
</sharedListeners>

Now run the service, get the error and using SvcTraceTool (just go to Program Files\Microsoft SDKs and do a search for svc) open up the output log. This will give you more of an overview of the process, at which point it goes wrong and point to more details of the exception - sometimes just telling you to look in the Event Log for the specific exception.