Hello 32_Rex,
Welcome to Apple Support Communities. We understand wanting to update the Wi-Fi settings on your Apple TV, and we'd be happy to provide some guidance.
- Go to your device’s Settings menu and choose Network.
- Select Configure Wireless.
- Select your wireless network from the list.
- If your WiFi network requires a password, a keyboard will be displayed. Enter the password with your Apple TV remote control and then select Done.
- When your device is connected, you’ll receive a confirmation message. Select Done.
For more information, please check these helpful links:
Change network settings on Apple TV
If your Apple TV can't connect to Wi-Fi
We hope this information is useful. Kind regards.