I got stuck doing the Windows Identity Foundation Training Kit Lab “Web Services and Identity” excercise 2. After adding the ADFS STS to the WeatherStationService the lab document instructs you to update the service reference in the client. Alas, that did not work.
The solution is to find in the service’s web.config the element the serviceMetadata element and add the attribute httpsGetEnabled=”true”.
Hope this helps you.