Your TV can perform a network and connectivity diagnosis, which can help you pinpoint your issue. Please try the following:
- Press the HOME button on the remote
- Select Settings.
- Select Internet Network in the Network & Accessories category.
- Select Advanced settings.
- Select Network status.
- Select Check Connection.
- Select Yes on the Do you want to check the connection? screen.
- Connection diagnosis will start. The connection results will be displayed after a few minutes.
Which connection result is displaying?