WCF Service netMessaging Binding socket exception

I'm trying to integrate a WCF service with service bus. I've set up the service endpoint with the following security behaviour...

<transportClientEndpointBehavior>
            <tokenProvider>
                <windowsAuthentication>
                <stsUris>
                  <stsUri value="[machine-name]:9355/ServiceBusDefaultNamespace" />
                </stsUris>
              </windowsAuthentication>
            </tokenProvider>
          </transportClientEndpointBehavior>

However, when I start the service I receive a constant stream of errors...

Some error occurred that was not more specifically defined.
Unhandled error caught in Endpoint Tracking service: The socket connection was aborted. This could be caused by an error processing your message or a receive timeout being exceeded by the remote host, or an underlying network resource issue. Local socket timeout was '00:00:59.9989958'.

ServiceBus and WCF service are both on my local box at the moment, and the SB Explorer seems to work fine.