How to Mirror Your Monitor to an LG TV via Wi-Fi: A Complete Guide

Wirelessly cast your computer or laptop screen to your TV LG Wi-Fi saves space, eliminates cable clutter, and opens up new possibilities for work or entertainment. However, not all users know that several technologies are used for this purpose—from the built-in Miracast to proprietary solutions like Apple AirPlay or LG TV PlusEach of them has its own nuances: in some cases, additional software will be required, while in others, the built-in functions of Windows or macOS are sufficient.

In this article, we will look at all the current methods of displaying a monitor on LG Smart TV via Wi-Fi, including step-by-step instructions for different operating systems. We'll pay special attention to common errors (for example, when the TV doesn't find the device) and optimizing image latency—a critical parameter for gamers or when watching videos. If you've already tried connecting but encountered problems, there's a guide at the end of the article. FAQ block with solutions for 90% of cases.

1. Preparing your LG TV for wireless connection

Before transferring the image from the monitor, make sure that your LG Smart TV supports the required technologies. Most models after 2018 (series UK6200, UM7300, UN7300, OLED C9/CX and newer) are equipped with a built-in Miracast And DLNATo check:

• 📺 Go to the TV menu: Settings → All settings → Network → Wi-Fi and make sure that the TV is connected to the same network as your PC/laptop.
• 🔍 Go to Settings → General → About TV and check the version webOSFor stable operation of Miracast, you need webOS 4.0 or higher.
• 🔄 Update firmware: Settings → Support → Software Update → Check for updates. On 2020–2023 models without the latest firmware, Miracast may work with artifacts or not turn on at all.

If your TV is older than 2017 (for example, series LJ550V or UJ630V), you may need an external adapter like Microsoft Wireless Display Adapter or ScreenBeam Mini2These devices connect to the port. HDMI and add Miracast support even to older models.

⚠️ Warning: On TVs LG With webOS 3.0 and below the function Screen Share (analogue of Miracast) can only work with devices on Android 6.0+. For Windows, you will need third-party software like ApowerMirror.

2. Method 1: Miracast (Screen Share) for Windows 10/11

Miracast — is a wireless screen-casting standard built into Windows starting with version 8.1. It allows you to duplicate or extend your desktop onto a TV. LG without additional programs. The main condition: both devices must be connected to the same Wi-Fi network (or the TV must support Wi-Fi Direct).

Instructions for Windows 10/11:

1. On TV LG open Settings → Connection → Screen Share.
2. In Windows, click Win + K (or open Settings → System → Display → Connect to a wireless display).
3. Select your TV from the list of available devices. LG (the title will be displayed as LG_XXXX).
4. Confirm the connection on your TV if prompted.

If your TV does not appear in the list:

• 🔄 Restart your router - sometimes the DHCP server doesn't distribute addresses correctly for Multicast (used in Miracast).
• 🖥️ Update your video card drivers (especially important for Intel UHD Graphics And AMD Radeon).
• 📡 Check if your Wi-Fi router supports the standard 802.11ac (5 GHz). At a frequency of 2.4 GHz Miracast may work with delays.

Wi-Fi is enabled on both the PC and TV, and the same network is connected. | TV is in Screen Share mode | Video card drivers are updated | Router supports 5 GHz.

⚠️ Attention: On laptops with hybrid graphics (NVIDIA Optimus or AMD SwitchableMiracast may not work if "Power Saver" mode is selected in the graphics settings. Switch to the discrete graphics card in the driver control panel.

3. Method 2: DLNA (Smart Share) for media files

If you need to stream to TV LG only video, music or photos (not the whole screen), use technology DLNAIt works over a local network and allows you to stream files without duplicating your desktop. To do this:

1. On your TV, open the app Smart Share (or LG Content Store → Utilities → Smart Share).
2. On your PC, enable folder sharing:

   Control Panel → Network and Internet → Network and Sharing Center → Change advanced sharing settings

   Select the "Turn on file and printer sharing" option and save.

3. Install a DLNA server program on your PC, for example:
   • Plex Media Server (for organized libraries)
   • Serviio (lightweight version)
   • Windows Media Player (built-in, but with limitations)

IN Smart Share On your TV, select your PC from the list of devices and open the file you need.

DLNA supports most formats, but there are some nuances:

• 🎬 Video in MKV with codec H.265 (HEVC) may not work on older models LG (until 2019).
• 🔊 Sound DTS or Dolby Atmos will be broadcast in stereo if the TV does not support these formats.
• 📁 Folders with Cyrillic names may not display - rename them to Latin characters.

How to speed up file downloads via DLNA?

If the video is slow to play, try:

1. Connect the PC and TV to the router via cable (even if Wi-Fi is enabled).

2. Reduce the transcoding bitrate in the DLNA server settings (for example, in Plex this is done in the "Transcoder" section).

3. Split large files (e.g. 4K movies) into 2-4GB chunks using MKVToolNix.

4. Method 3: Apple AirPlay for macOS and iOS

If you have devices Apple (MacBook, iPhone, iPad), the easiest to use AirPlayThe technology is supported on TVs. LG With webOS 4.0 and above (2019 and newer). To connect:

1. Make sure the TV and device are Apple connected to the same Wi-Fi network.
2. Enable AirPlay on your TV:

   Settings → All Settings → General → Apple AirPlay and HomeKit → Turn on AirPlay

3. On Mac: open Control Center → Screen Mirroring and choose yours LG TV.
4. On iPhone/iPad: swipe down to call Control center, click Screen mirroring and select TV.

Features of AirPlay on LG:

• 🎮 Delay in broadcasting games with iPhone is ~50–80 ms (not suitable for shooters, but normal for strategies).
• 🔒 When you connect for the first time, a code will appear on your TV – you need to enter it on the device Apple.
• 🎵 The sound is transmitted automatically, but if you use HomePod, it can be redirected back to the Mac/iPhone speakers.

⚠️ Warning: On TVs LG 2020–2023 AirPlay supports resolutions up to 4K@60Hz, but only if the router operates at a frequency 5 GHz at a speed not less than 866 Mbps (standard 802.11ac).

5. Troubleshooting connection issues

If the TV LG If your PC doesn't see it or the image is displayed with artifacts, check the following:

If nothing helps, try alternative programs:

• 🖥️ ApowerMirror — works even on old TVs, but requires software installation on a PC.
• 🎮 Steam Link — optimized for gaming (latency ~30 ms).
• 📱 TeamViewer QuickSupport - if you need to temporarily show your screen for technical support.

6. Optimizing delay (latency) during broadcasting

Latency between the PC screen and TV is one of the main challenges when streaming wirelessly. Different scenarios require different settings:

• 🎮 Games: use Steam Link or Moonlight (for NVIDIA GPUs) with the "Speed ​​Priority" setting. Latency will be ~20–40 ms.
• 🎥 Movies: In Miracast, select the "For video" mode (lower bitrate, but more stable playback).
• 💼 Work/presentations: Disable background applications on your PC (especially torrents or cloud syncs).

Additional tips to reduce lag:

• 📶 Switch your router to the mode 802.11ac (5 GHz) and set the channel width 80 MHz.
• 🖥️ On your PC, select "High Performance" in the power settings.
• 🔌 Connect your PC to the router via cable (even if the TV remains on Wi-Fi).

How to check the delay?

Download the app to your phone Display Lag Tester (Android) or Touch Screen Test (iOS) Press and hold the mouse button on the phone screen at the same time—the time difference will be displayed in milliseconds.

7. Alternative connection options

If your Wi-Fi connection is unstable or your TV LG does not support wireless technologies, consider alternatives:

• 🔌 HDMI cable: The most reliable method without delays (suitable for 4K@120Hz).
• 📡 Wi-Fi 6 (802.11ax): routers like ASUS RT-AX88U or TP-Link Archer AX6000 reduce lags to 10–15 ms.
• 📱 Google Chromecast: Connects to an HDMI port and supports streaming from a PC via the Chrome browser.
• 🖥️ Parsec: Cloud service for streaming games from PC to TV (latency is ~15 ms, but requires a good internet connection).

For owners LG OLED or QNED There is another option for the 2022-2023 models - Wi-Fi 6EThis technology uses a range 6 GHz, which is less congested and provides speeds up to 2 GbpsHowever, for it to work, you need a compatible router (for example, Netgear Nighthawk RAXE500) and support on the PC side (chip Intel AX210 or newer).

FAQ: Frequently Asked Questions

❓ Why can't my LG TV see my laptop via Miracast?

Check:

1. Both devices are connected to the same Wi-Fi network (not to different bands) 2.4/5 GHz).
2. Wi-Fi is enabled on the laptop and the "Discoverable" mode is selected in the Miracast settings.
3. Video card drivers have been updated (especially for Intel UHD Graphics).
4. On TV in Settings → Network → Wi-Fi Direct Receive mode is enabled.

If nothing helps, try disabling your firewall or antivirus (for example, Kaspersky may block Multicast packets).

❓ Is it possible to screencast from a Mac to an LG TV without AirPlay?

Yes, there are two options:

1. Use ApowerMirror or 5KPlayer (requires software installation on Mac).
2. Connect via DLNA, if you only need to stream media files (for example, via Plex).

For games it is better to use Steam Link — it is optimized for macOS and supports gamepads.

How do I output sound to an LG TV when connected via HDMI?

If there is a picture but no sound:

1. On PC: Right-click on the speaker icon → Open Sound Settings → Output Tab → Select LG TV.
2. Check if the sound on your TV is muted (Mute button or settings Sound → Output).
3. If you use NVIDIA or AMD, update your sound card drivers (for example, Realtek Audio).

For webOS 5.0+ Also check your settings Sound → HDMI ARC Output (must be enabled if using HDMI ARC).

❓ What is the maximum resolution supported by Miracast on LG TV?

Depends on the TV model and version webOS:

• webOS 6.0+ (2021–2023): until 4K@60Hz (with router Wi-Fi 6).
• webOS 4.0–5.0 (2018–2020): before 1080p@60Hz.
• webOS 3.0 (before 2017): up to 720p@30Hz (often with artifacts).

For 4K It also requires that the PC supports HEVC (video cards NVIDIA 10-series and newer, AMD RX 400 and newer).

❓ Can I use an LG TV as a second monitor via Wi-Fi?

Yes, but with some reservations:

• Through Miracast You can select the "Extend" mode (instead of "Duplicate") in the Windows settings (Win + P).
• Input lag (mouse/keyboard) will be ~50–100 ms – inconvenient for working with text or graphics.
• For comfortable work it is better to use Parsec or Splashtop (delay ~10–30 ms).