How to fix video playback issues on Vizio TV

To start, make sure your TV is connected to a stable internet connection. You can do this by checking other devices connected to the same network or running a speed test on another device to check.

1. If you have connected to a wired network, check the LAN cable, router, and socket on the wall for any issues.
2. Remove the LAN cable from the TV and test the connectivity by connecting it to your PC.
3. Turn off your router, wait for 1 to 2 minutes, turn it back on, and check the connection again.
4. Plug the LAN cable into another port in the router and check the connection again.
5. Unplug the LAN cable from Port 1 and plug it into Port 2.

If your wireless connection shows a signal strength of two or fewer bars:

1. Move the router as close to your TV as possible.
2. Turn off your TV and then router, turn them back on, and try connecting to the network again.
   • Don't cross the router antennas.

Sometimes, a simple restart can resolve temporary issues. 

1. Turn off your TV.
2. Unplug it from the power source.
3. Wait for a few minutes, then plug it back in and turn it on.

To fix possible video playback issues, you should ensure that your Vizio Smart TV has the latest firmware installed. Follow these steps:

1. Press the Menu button with your Vizio remote.
2. Navigate to Admin and Privacy to select Check for Updates. 
3. Sit back and let your TV handle the rest.

If there’s an update, your TV will handle it automatically. This will also update the Crunchyroll app if any app update is available.

Clearing the cache and cookies on your TV's web browser can help resolve playback issues. Go to the web browser settings and look for options to clear cache and cookies. 

If you're using external devices like a gaming console, make sure the HDMI or other connections are secure. Try disconnecting and reconnecting the cables to ensure a proper connection.