Troubleshooting Windows Casting to LG TV: Audio Works for a Second Before Cutting Off

Troubleshooting Windows Casting Audio Issues to LG Smart TVs: A Step-by-Step Guide

If you’ve recently encountered issues when casting audio from your Windows 11 laptop to LG webOS smart TVs, you’re not alone. Many users have reported that while video streams correctly, the audio playback is inconsistent—playing for a brief moment before cutting out completely. This guide aims to help you diagnose and resolve such issues efficiently.

Understanding the Scenario

Many Windows users connect their laptops wirelessly to LG TVs via screen casting features, expecting seamless multimedia experience. Typically, Windows recognizes LG TVs as “LG webOS TVs” (e.g., UP7560AUD), enabling users to select them as audio output devices. However, recent updates or configuration changes can disrupt this functionality, leading to a situation where audio only plays briefly before cutting off.

Common Symptoms

• Audio plays normally for approximately 1-2 seconds after selecting the TV as the audio output.
• After initial playback, audio stops abruptly.
• Visuals continue to stream without interruption.
• The problem persists across different LG TV firmware versions.

Potential Causes

Several factors can contribute to this issue:

• Incompatibility or bugs in the current Windows 11 update.
• Variations in TV firmware versions affecting connectivity.
• Incorrect or conflicting cast or sound settings.
• Network-related issues or interference.
• Outdated device drivers related to audio or network adapters.

Step-by-Step Troubleshooting

1. Verify Network Connection
   Ensure both your Windows laptop and LG TVs are connected to the same Wi-Fi network. A stable network connection is crucial for reliable casting.

2. Update Device Firmware and Drivers

3. LG TVs: Check for firmware updates via the TV’s settings menu and update if necessary.
4. Windows 11: Ensure your operating system is up to date.

5. Audio and Network Drivers: Update your network adapters and sound drivers through Device Manager or the manufacturer’s website.

6. Adjust Sound Output Settings

7. Open the Windows Sound settings (Right-click the speaker icon > Sound settings).
8. Under Output, select your LG TV explicitly as the output device.

9. If using the “Digital Output” option, switch to “Wireless Display” or the specific LG TV name.

10. Change Casting Mode

11. Switch between “Duplicate,” “Extend,” or “Second Screen” modes via Windows Display Settings.

12. Sometimes, switching modes can resolve audio synchronization issues.

13. Restart Devices

14. Power off the LG TVs and your Windows laptop.
15. Wait for a minute before powering