Apple TV keeps buffering

Unfortunately, I haven’t read about brand-specific troubleshooting steps for Vizio TVs.

• Try cold restarting the TV (not standby-on, but a real restart).
• Try resetting the Apple TV app.
• See if there is newer TV system software available for your TV model. Install if available.

Can you measure the bandwidth to your TV? Videos from Apple may stream with up to 25 Mbps for 4K HDR content. It might buffer when less is available.

On what device is this happening?

For select devices, some here may know procedures to likely bring it back to intended functionality.

Our main Smart TV …

Please specify the brand and model (year) and smart OS.