Local service (The server has rejected the client credentials.)

I have a simple setup, a WPF application running on the machine and a WCF service hosted within a Windows Service on the same machine (always on the same machine). When i debug on one computer i can easily access the local WCF Service. When i run it on another machine i get an error:

"The server has rejected the client credentials."

Some of my observations are, that at my local machine i have no domain/network. Its my home machine.开发者_高级运维 When at a customers site, it will not run, and gives the above error. Anyone got any ideas on why this is different on these computers?

/Brian

Edit:

Contract:

[ServiceContract(Namespace = "http://www.greenweb.dk/motiondetection")]
    public interface IMotionDetection
    {
        [OperationContract]
        bool GetMotionDetected();
    }

App.Config

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <system.serviceModel>
    <bindings />
    <client />
    <services>
      <service name="GreenWebPlayerMotionDetectionService.MotionDetected" behaviorConfiguration="MotionDetectionBehavior">
        <host>
          <baseAddresses>
            <add baseAddress="net.pipe://localhost/GreenWebMotionDetectionService/"/>
          </baseAddresses>
        </host>
        <endpoint address="" contract="GreenWebPlayerMotionDetectionService.IMotionDetection" binding="netNamedPipeBinding"/>
        <endpoint address="mex" contract="IMetadataExchange" binding="mexNamedPipeBinding"/>
      </service>
    </services>
    <behaviors>
      <serviceBehaviors>
        <behavior name="MotionDetectionBehavior">
          <serviceMetadata httpGetEnabled="false"/>
        </behavior>
      </serviceBehaviors>
    </behaviors>
  </system.serviceModel> 
</configuration>

Edit 2 Security will not be a problem, no security is neeed, the computer on which it runs is already isolated from everything else.

EDIt 3 Have set <security mode="None"></security> on both the client and the server, now im getting this error: "There was an error reading from the pipe: Unrecognized error 109 (0x6)"

I can't figure out whether this is a step in the right direction

The problem seems to be the security. Instead of None i set the client and server to be "EncryptAndSign". This however wasnt enough when the host was a windows service. I abandoned the windows service approach and hosted it in a windows application instead - then it worked immediately...go figure!

The issue is with the

netNamedPipeBinding

.This binding is used to communicate inside a machine. Please check the link.Its for on-machine .

If you want to communicate between 2 machine which uses .net select net.tcp .If you want to communicate between .Net and Java apps use basicHttpBinding.

http://msdn.microsoft.com/en-us/library/system.servicemodel.netnamedpipebinding.aspx