Modern multimedia systems allow you to stream content from your personal computer to a large screen without the need for unnecessary cables. Wireless connections allow you to access high-definition movies, games, and work presentations directly from your PC's hard drive. Wi-Fi Direct and streaming standards make this process as simple as possible for the user.
Equipment owners LG Smart TV They have several built-in tools for organizing such interactions. You don't need to buy additional adapters or complex set-top boxes if your router and TV support wireless standards. Proper network configuration will ensure stable video streaming without lag.
In this article, we'll cover all the current methods for synchronizing devices. We'll cover both built-in Windows operating system features and specialized manufacturer-provided apps. You'll learn how to avoid common mistakes and maximize the performance of your home network.
Requirements for equipment and network infrastructure
Before setting up, make sure your home network is ready to handle heavy video content. The key requirement is that both devices are on the same local network. The computer and TV must be connected to the same router, either via cable or wirelessly.
For comfortable viewing of videos in 4K or HDR resolution, it is recommended to use the frequency range 5 GHzThe older 2.4 GHz standard may not be able to handle high bitrates, resulting in choppy video or out-of-sync audio. Check your router's specifications and ensure it supports modern security protocols. WPA2/WPA3.
⚠️ Please note: If your router is more than 5 years old, it may not be able to handle simultaneous data transfer to multiple devices. In this case, even the best TV settings won't prevent buffering.
It's also worth paying attention to your computer's operating system version. Most modern mirroring protocols require Windows 10 or newer. Older systems may require additional drivers or may not natively support the wireless monitor feature.
Miracast Screen Sharing Method in Windows
The fastest way to display an image from the entire desktop is to use technology MiracastIn the Windows operating system, this function is implemented through the "Connection" component. TVs LG WebOS support this standard out of the box, which eliminates the need to install unnecessary software.
To start the process, press the key combination Win + K on the keyboard. A "Connection" panel will appear on the right side of the screen, where the system will begin searching for available devices. Make sure the app is running on the TV. Screen Share (found in the app list or on the start bar).
☑️ Check before connecting Miracast
After selecting your TV from the list, the pairing process will begin. You may see a confirmation message on the TV screen—use your remote to confirm. Your PC monitor's image will instantly appear on the big screen, and audio will be transmitted through the TV speakers.
If you want to change the operating mode, click Win + PThe available options are "Second Screen Only" (the PC monitor will turn off), "Duplicate" (the same image), or "Extend" (the TV will become a second desktop). The latter option is convenient for presentations or watching videos while working.
Using DLNA to play media files
If your goal is just to watch a movie or a photo album, and not to broadcast your entire desktop, it is better to use the protocol DLNAThis method is less resource-intensive and provides more stable picture quality, as the TV decodes the video stream itself.
In Windows 10 and 11, the media server feature is built into the standard File Explorer. Find the video file, right-click it, and select "Cast to device." Select your file from the list. LG Smart TV.
| Parameter | Description | Recommendation |
|---|---|---|
| Protocol | DLNA / UPnP | Standard for media |
| Video formats | MP4, MKV, AVI | Depends on TV codecs |
| Stability | High | Better than Miracast |
| Control | From a PC or Remote Control | Full control |
More advanced users should consider installing a dedicated server, such as Universal Media Server or PlexThese programs automatically download movie covers, sort content by genre and year, and create a user-friendly interface on your TV screen.
To activate the function in the standard Windows settings, go to Settings → Network & Internet → Status → Sharing optionsMake sure network discovery and file sharing are enabled. Without these, the TV simply won't see the content folders on your computer.
The official LG TV Plus app
LG has developed its own software for controlling appliances. The application LG TV Plus (or its newer version LG ThinQ) allows you to not only broadcast photos and videos, but also use your smartphone or PC as a remote control.
To work with a PC, you will need an Android emulator or use the "Streaming via Web Interest" feature if your TV model supports it. Smart ShareHowever, most often this application is oriented towards iOS and Android mobile platforms.
⚠️ Note: The interface and app name may vary depending on the TV's year of manufacture. Models before 2018 may require an app. LG TV Remote, and for new ones - LG ThinQ.
The main advantage of this method is the ability to control the mouse cursor using the smartphone's gyroscope (the Magic Mobile feature). This is especially convenient for navigating web pages on a TV or entering text into search engines, as the virtual keyboard on the TV screen is often inconvenient.
Why doesn't the app see the TV?
The problem often lies in Windows Firewall settings. When you first launch the app, it asks for network access permission. Be sure to select "Private Networks" or "All Networks," otherwise the connection will be blocked by the security system.
Third-party solutions and browser streaming
If standard methods don't work or require advanced functionality, you can turn to third-party software. A popular solution is to use a browser. Google ChromeThe browser menu (the three dots in the corner) has a "Cast" feature that works on most Chromecast- or AirPlay 2-enabled TVs.
This method is ideal for displaying the contents of a single tab or the entire desktop. Transmission quality depends on the computer's processor, as it encodes the video stream in real time.
Another option is to use a media player VLC Media Player. In the "Playback" menu, select "Renderer." If your TV supports the DLNA protocol, it will appear in the list. This is a great way to watch videos that don't open with the system's default tools.
Diagnosing and troubleshooting connection problems
Despite the simplicity of the technology, users often encounter problems with devices not being able to see each other. The most common cause is a network that is divided into guest and main. Ensure that the PC and TV are connected to the router's main SSID, not to the guest channel, where client isolation prevents data exchange.
Problems may be caused by outdated wireless adapter drivers on your computer. Go to Device Manager, find your WiFi module, and try updating the drivers. It's also worth checking if your router settings limit speeds or prioritize specific devices.
If the image is flickering or the sound is missing:
- 📉 Try lowering the output resolution on your PC (for example, from 4K to 1080p).
- 📡 Move closer to the router or use a USB extender for your WiFi adapter.
- 🔄 Restart your router - this solves 90% of buffer freezing problems.
- 🔌 Disable the VPN on your computer, as it may block local traffic.
In rare cases, a complete reset of network settings helps. On a computer, this can be done through the command line by entering the TCP/IP reset commands. On an LG TV, this can be done through Settings → General → Network → Reset network settings.
Frequently Asked Questions (FAQ)
Is it possible to connect a computer to an LG TV without a router?
Yes, using Wi-Fi Direct technology. In this case, the TV creates its own network to which the computer connects. However, data transfer speeds may be lower, and the PC's internet connection will not work over this connection.
Why is there no sound when connected via WiFi?
Most likely, your system doesn't have a default audio output device selected. Click the speaker icon in the Windows system tray, select the playback device, and select your TV (often listed as the TV model or "Digital Audio").
Do all LG TVs support wireless connectivity?
Almost all models have the function Smart TVTVs released after 2012 support Miracast and DLNA. Older, non-smart models require an external set-top box (Android Box or Chromecast) to receive a WiFi signal.
How to reduce lag when gaming over WiFi?
For gaming, a wireless connection will always have latency. To minimize it, use the 5 GHz band, disconnect other devices from the network, and, if possible, use Game Mode on your TV. For competitive gaming, an HDMI cable is still recommended.