SAS tokenprovider using wrong domain in Service Bus 1.1 Preview for Windows Server

i have a demo working fine with the oAuth TokenProvider.  I've changed it to use SharedSecretTokenProvider.

 TokenProvider oTokenProvider = TokenProvider.CreateSharedSecretTokenProvider("owner", sharedKey);

// connect to the namespace, with the authenticated user token
namespaceManager = NamespaceManager.CreateFromConnectionString(connBuilder.ToString());
namespaceManager.Settings.TokenProvider = oTokenProvider;

No errors so far, but when I access the namespace, eg

if (namespaceManager.TopicExists(TopicName))

then I get this error :

System.UnauthorizedAccessException was unhandled
  HResult=-2147024891
  Message=uri provided my.fully.qualified.domain does not match Service Bus domain: servicebus.windows.net.
  Source=Microsoft.ServiceBus

Why is it doing anything with servicebus.windows.net?   Or is this a bug in the Windows Server Service Bus 1.1 Preview?