If your Vizio TV can't connect to Wi-Fi, try the following troubleshooting steps:
• Toggle DHCP Settings: Access the TV's menu and adjust the DHCP settings to help the TV and router communicate.
• Power Cycle Devices: Turn off the TV and unplug it. Plug the TV back in after a few minutes.
• Test Connection Quality: Go to Menu > Network > Test Connection on your TV to check the connection status. If the speed is low or unavailable, further troubleshooting may be needed.