A:Answer Thank you for your inquiry! To resolve the “Network Connection Lost” message on your Insignia™ - 42" Class F20 Series LED Full HD Smart Fire TV, you can try the following steps: First, restart your TV by unplugging it from the power outlet, waiting for about a minute, and then plugging it back in. Turn the TV on and see if the message disappears. Next, check your network connection to ensure that your Wi-Fi network is working properly by connecting another device to the same network to see if it has internet access. Then, reconnect to Wi-Fi by going to the Home screen on your TV, navigating to Settings > Network, selecting your Wi-Fi network, and entering the password if prompted. Additionally, updating the TV’s firmware can sometimes resolve connectivity issues, so go to Settings > My Fire TV > About > Check for Updates. If the issue persists, you can reset the network settings by going to Settings > Network > Reset Network Settings, which will require you to reconnect to your Wi-Fi network. If these steps don’t resolve the issue, you might want to contact Insignia customer support for further assistance. If you have any other questions or need further help, feel free to ask! Keith | Insignia Support
