I have gotten to the point where my local service runs fine. I can also access my production service at: http://yeagerte.w07.Winhost.com/yeagerte/YeagerTechWcfService.YeagerTechWcfService.svc This signifies that the service is working fine. I can also pull up the service in the WCF Test client tool. When I try and access my production service (for debugging pruposes) from within Visual Studio, I get the following error: The message could not be processed. This is most likely because the action 'http://tempuri.org/IYeagerTechWcfService/GetCategories' is incorrect or because the message contains an invalid or expired security context token or because there is a mismatch between bindings. The security context token would be invalid if the service aborted the channel due to inactivity. To prevent the service from aborting idle sessions prematurely increase the Receive timeout on the service endpoint's binding. Please also see the image wcf test client 1 which is a similiar error in conjunction with the above error. I have searched the web to try and find out additonal info, but am at a stand still... I know it's some kind of configuration issue. Can you please let me know what I exactly need to change in the attached config files for it to work successfully? I am just plum old shot of even just getting to this point..... You can also see in my code (see images), that the call doesn't even make it into my web service and I have valid objects instantiated in the debug window at the bottom of the image.