Using an LG TV as a Monitor via Wi-Fi

Modern digital entertainment and remote work often require expanding your workspace or displaying content on a larger screen. Using a TV LG Smart TV As a second monitor or primary display, this is an effective solution that eliminates the need to run long HDMI cables across the room. The wireless connection allows you to stream content, play games, or work on documents while maintaining the aesthetic appearance of your interior.

Wireless data transmission technologies such as Miracast and DLNA are built into most modern models from the Korean brand, making the setup process relatively simple. However, to achieve a stable, lag-free picture, you need to properly configure your network equipment and display settings. In this article, we'll cover all the ways to connect your computer to your TV in detail. LG exclusively via Wi-Fi network.

It's important to understand that the quality of your wireless broadcast directly depends on your router's bandwidth and signal strength. To stream video in 4K resolution, you must use a router with the 802.11ac (Wi-Fi 5) standard or newer in the 5 GHz band. Older routers may not be able to handle the data flow, resulting in audio and video being out of sync.

Checking compatibility and preparing equipment

Before you begin setting up, you need to make sure that your equipment supports the required protocols. Almost all TVs LG with Smart TV function (webOS operating system) have a built-in Wi-Fi Direct module and support for the standard MiracastThe computer must also have a wireless adapter that supports this standard, which is true for most laptops and PCs running Windows 10 or 11.

Both devices—the computer and the TV—must be on the same local network. This means they must be connected to the same router. If you're using a guest network or have client isolation configured on your router, the connection may fail. Make sure the TV is in guest mode. Smart Connection or a similar device detection service.

⚠️ Important: Make sure "Client Isolation" is not enabled on your router. This setting prevents devices on the network from "seeing" each other, making it impossible to wirelessly connect your PC to your TV.

It's also worth checking the operating system version on your computer. The "Projection" feature requires Windows 10 (Creators Update or later) or Windows 11 to work natively. Older versions, such as Windows 7 or 8.1, will require installing additional drivers or using third-party software.

Setting up an LG TV to receive a signal

The first step is to properly configure your receiver, i.e., your TV. Depending on the model year, the menu interface webOS The instructions may differ, but the logic remains the same. You need to activate the feature that allows external devices to detect the TV on the network.

Use the remote control to access the main menu and go to Settings. Find the section for connecting external devices. On newer models, this is often located in the menu. Connection -> Connection menu. You need to activate the option here. Screen Share or LG Connect Apps.

• 📺 Press the "Input" or "All Inputs" button on the remote and select the "Screen Share" app.
• ⚙️ In the TV settings menu, go to the "Network" section and make sure Wi-Fi is turned on.
• 🔌 Some models require manual permission to connect in the "Connection Menu" (allow connection notifications).

Once standby mode is activated, the TV will begin broadcasting its ID to the network. A message may appear on the screen indicating that the device is ready to connect and awaiting a request from the computer. Do not close this window until setup is complete.

Connecting via built-in Windows tools (Miracast)

The easiest and fastest way to transform your TV LG To a second monitor, use the built-in Windows feature called "Projection." This method does not require installing additional software and is based on the standard Wi-Fi Direct.

Press the key combination Win + K on your computer's keyboard. The "Connect" panel will open on the right. The system will begin searching for available wireless displays. Your TV should appear in the list. LG (usually it is called LG webOS TV or model, for example 55NANO86).

Click on the TV's name. A connection confirmation message may appear on the TV screen. Use the remote control to select "Accept" or "Allow." The Windows desktop image will then be mirrored to the large screen.

The display mode can be changed by pressing Win + PYou have the following options: "Second Screen Only" (the image appears only on the TV), "Duplicate" (a copy), or "Extend" (the TV becomes an extension of the desktop). For work, the extension or full image transfer mode is most often chosen instead of a monitor.

Using DLNA technology for multimedia

If your goal is not to broadcast your entire desktop, but simply to play video or music from your computer on your TV, it is more convenient to use the protocol DLNAOn TV LG This function is implemented through the application Smart Share or "Photo and Video".

For DLNA to work, media streaming must be enabled on your computer. Go to "Media Streaming Settings" in the Windows Control Panel. Make sure the status is "Enabled" and your TV LG Access to media files is allowed.

Now you can simply right-click a video file on your computer, select "Cast to Device," and choose your TV. The file will open on the big screen, leaving you free to use your computer for other tasks.

⚠️ Note: The DLNA protocol does not support streaming interactive images (desktops). It is designed exclusively for playing media files (photos, videos, music). For gaming or work, use Miracast.

The advantage of DLNA is that it places less load on the computer's processor, since the TV decodes the video stream itself. However, the file format must be supported by the TV. If the video doesn't play, the codec may need to be converted.

Third-party programs for advanced broadcasting

Windows' built-in features don't always provide ideal performance, especially when gaming or watching heavy video content. In such cases, specialized utilities that optimize Wi-Fi data transfer come to the rescue.

One of the popular programs is LetsView or AirServerThey not only allow you to mirror your screen but also control your computer from your TV (if the TV supports mouse control), and also offer more flexible picture quality settings. This software requires installation on both the PC and sometimes the TV (via the LG Content Store).

Another option is to use browsers. If you have Google Chrome installed, you can cast a tab or the entire screen using the "Cast" feature. To do this, click the three dots in the corner of the browser -> "Save and Share" -> "Cast." Select your Chromecast built-in or LG TV.

When using third-party software, it's important to close unnecessary applications on your computer to free up processor resources for encoding the video stream. This is especially important for low-end laptops.

Optimizing image quality and eliminating lag

A wireless connection always introduces some input lag. While this isn't noticeable when watching movies, it can cause the cursor to "float" during fast-paced games or when working with text. To minimize this effect, it's important to properly configure the output settings.

In Windows, go to "Settings" -> "System" -> "Display." Select your TV. LG and scroll down to "Advanced display settings." Here you can change the screen refresh rate. For TVs, it is recommended to set 60 Hz, unless the model supports 120Hz over the air (which is rare for Wi-Fi).

Also on the TV itself LG You should enable "Game Mode" in the display settings. This disables unnecessary image post-processing, which reduces input lag. Find it in the menu. Picture Settings → Advanced Settings → Picture Mode → Game.

Common problems and solutions

Despite its convenience, wireless connections can encounter technical difficulties. The most common issue is that the TV isn't listed as an available device. In this case, check your Windows Firewall. It may be blocking incoming connections for the "Projection" feature.

To fix this, open "Windows Security" -> "Firewall & Network Protection." Click "Allow an app through firewall." Find "Wireless Display" in the list and make sure both the private and public network checkboxes are selected.

Another common cause of problems is an overloaded Wi-Fi channel. If your neighbors also have powerful routers, the signal may falter. Try changing the Wi-Fi channel in your router settings to a less congested one (for example, from 1 to 6 or 11 in the 2.4 GHz band, or select a clear 5 GHz channel).

⚠️ Note: LG webOS TV menu interfaces may vary depending on the firmware version. If you don't see this option, check for software updates under "General" -> "About TV" -> "Check for updates."

If you see a picture but no sound, check your audio output device in Windows. Click the speaker icon in the system tray and select your TV. LG instead of computer speakers. Sometimes sound drivers need to be updated through Device Manager.

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