'Override this method in your *SMBProtocolFactory* subclass to add in post-authentication handling.
This method will be called when the server has replied that the SMB connection has been successfully authenticated.
If you want to retry authenticating from this method,
1. Disconnect the underlying SMB connection (call ``self.instance.transport.loseConnection()``)
2. Create a new SMBProtocolFactory subclass instance with different user credientials or different NTLM algorithm flag.
3. Call ``reactor.connectTCP`` with the new instance to re-establish the SMB connection'

def onAuthFailed(self):

    pass
