To reset the Netflix app on your Smart TV, follow these steps:

1. Power off your Smart TV by pressing the power button on your remote.
2. Hold down the power button on your remote for five seconds.
3. Wait about 30 seconds for the Smart TV and router to turn off.
4. Power on your Smart TV by pressing the power button on the remote.
5. Launch the Netflix app.
6. Wait about five minutes for it to fully reset.