I get the following error when calling method from my client (client.Authenticate)
"The communication object, System.ServiceModel.Channe
Channel, cannot be used for communication because it is in the Faulted state."
Note that the WCF service is hosted by a vendor. I have generated the necessary files using svcutil
see code below
using (MailingListClient client = new MailingListClient("WSHttpBinding_IMailingList"))