I can\'t seem to figure this one out. No matter what I do, I keep getting a \"417 Expectation failed\" error. Everywhere I\'ve looked says that I need to get rid of the Expect h
DotNetOpenAuth doesn't set or support Except100Continue directly. Would be nice if there is a property in the Channel class.
Add this before your call to 'PrepareAuthorizedRequest':
((HttpWebRequest)WebRequest.Create
(UpdateStatusEndpoint.Location)).ServicePoint.Expect100Continue = false;
Except100Continue is set depending on the called URL. So you can set it before the connection is created. You may even set it globally in the config file.