System 2.0.0.0 4.0.0.0 System.Security.Authentication.AuthenticationException The and classes throw this exception when authentication fails. This exception indicates that the underlying stream is not in a valid state and you cannot retry the authentication using the or instance. If you can retry the authentication, an is thrown instead of the . The exception that is thrown when authentication fails for an authentication stream and cannot be retried. Constructor 2.0.0.0 4.0.0.0 This constructor does nothing. Initializes a new instance of the class with no message. Constructor 2.0.0.0 4.0.0.0 This constructor initializes the property with the text in the parameter. The property is set to null. Initializes a new instance of the class with the specified message. A that describes the authentication failure. Constructor 2.0.0.0 4.0.0.0 To be added. Initializes a new instance of the class from the specified instances of the and classes. A instance that contains the information required to deserialize the new instance. A instance. Constructor 2.0.0.0 4.0.0.0 This constructor initializes the property with the text in the parameter and initializes the property with the parameter value. Initializes a new instance of the class with the specified message and inner exception. A that describes the authentication failure. The that is the cause of the current exception.