Error: Registration failed due to authentication error. Press RETURN (or BACK) to go back. when attempting to connect to a device using the Wi-Fi Direct feature
Listed below are the causes for the error occurs and how to resolve the issue:
| Cause | Solution |
| The television and the connected device are effected by the interference from other wireless devices or a microwave oven. | Turn off the other devices surrounding the television or retry the connection setup. |
| The wireless signal is weaker if there are objects blocking the signal or the setup is performed far from the television. | The recommended distance between the television and the connecting device is from 1-3 meters or 3-9 feet. |
| Launched of other applications on the connecting device while setting up the connection or the connecting device is turned off due to no power | Make sure that the connecting device is turned on then reconnect the television and the connecting device again. |
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