This exception is typically thrown on the client when a channel is terminated due to server closing the associated connection.
Assembly: System.ServiceModel (in System.ServiceModel.dll)
This exception derives from CommunicationException that represents a class of recoverable errors that may be thrown during communication between endpoints and which robust Windows Communication Foundation (WCF) client and service applications are expected to handle. To prevent the more generic CommunicationException handler from catching the more specific ActionNotSupportedException, catch this exception prior to handling CommunicationException.
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.