Follow these steps to troubleshoot a connection error between your Smart TV and your home antenna:

1. Check the coaxial cables connecting your TV to the antenna, and verify that they are connected properly.
2. Check if the connector is secure – if not, secure it and try the connection again.
3. Determine if the antenna is functioning properly. You can do this by connecting it to another device.
4. Verify your TV is on the correct input or source setting.
5. Check your TV’s menu to verify the antenna is set up correctly.
6. Reset your modem/router – unplug the power cord for 15 seconds then plug it back in. Then attempt to reconnect.