Test the function of wireless connection and your PC capacities:
  - Download any test movie to your PC.
  - Check if the movie is displayed correctly on your PC.
  - Use a network cable (UTP) to connect your laptop to the network connector on the back of the TV.
  - Change the setting on the TV to ‘wired’ ([Home] > [Setup] > [Network settings] > [Network type] > change to [Wired]).
  - Start the Wi-Fi Media Connect program on your PC.
  - Play the test movie.
  - If the test movie plays well properly, the problem was in is with your wireless network connection.
  - If there is judder or other artifacts when the test movie plays, your PC processing power is insufficient. Use lower resolution video (SD, instead of HD; refer to the media playability table), or refer to the minimum PC specifications.