Modern technologies allow you to completely eliminate unnecessary wires, turning your living room into a true multimedia center. Image broadcast Sharing high-definition movies, games, and presentations from your computer to the big screen provides access without the limitations of a small monitor. LG owners often wonder how to achieve this quickly and efficiently using only their home network.
The setup process depends on your laptop's operating system, your TV's firmware version, and the type of content being streamed. There are several proven protocols: Miracast for full screen cloning, DLNA for streaming files and AirPlay 2 For Apple device users. Understanding the nuances of each method will help you choose the best option for your situation.
In this article, we'll take a detailed look at all connection methods, address common device visibility issues, and provide recommendations for improving connection stability. Wireless transmission It requires proper router configuration, but the results are worth it—no tangled cables or distance limitations.
Basic network and device requirements
The foundation of a successful connection is a properly organized local network. Both devices—the computer and the TV— LG Smart TV — must be connected to the same Wi-Fi network. Using guest networks or different bands (e.g., 2.4 GHz and 5 GHz with client isolation) may result in devices simply not being able to see each other.
Image quality directly depends on the channel bandwidth. To transmit video in Full HD or 4K A stable signal is required. If the router is located far away or the signal is constantly interrupted, you will experience lag and image artifacts.
- 📶 Both devices must be on the same subnet (usually this happens automatically when connecting to the same router).
- 🔄 Update your TV's firmware via the menu
Settings → Support → Software Updateto get the latest drivers. - 🛡️ Check your Windows Firewall settings to ensure it is not blocking media device detection.
- 📡 For 4K content, the use of the 5 GHz band is highly recommended.
⚠️ Note: Third-party antivirus programs (Kaspersky, ESET, Avast) often have their own built-in firewalls. If your computer can't detect your TV, try temporarily disabling network protection in your antivirus for diagnostic purposes.
Make sure the function Smart Share or a similar display option is enabled in the TV's settings. In newer LG webOS-based models, this feature is often activated automatically upon first connecting to the network, but in older software versions, you may need to manually launch the "Photos & Videos" or "Media Player" app.
Using the built-in Connect to a Wireless Display feature in Windows
The fastest way to cast your entire desktop screen or browser window is to use Miracast technology, which is built into Windows 10 and 11. This method requires no additional software and works via a direct connection.
To get started, press the key combination Win + K on the keyboard. The "Connection" panel will appear on the right, where the system will begin searching for available displays. Find your TV in the list. LG and click on it to pair.
☑️ Check before connecting Miracast
Once connected, the monitor's image will be mirrored on the TV. You can choose between screen mirroring and desktop extension modes. In the latter case, the TV will act as a second monitor, allowing you to drag application windows onto it.
- 🖥️ The "Duplicate" mode is ideal for viewing photos and videos in full screen.
- 🖱️ The "Extend" mode allows you to work on your computer while a movie is playing on TV.
- 🔊 The sound will also be transmitted to the TV speakers, which should be taken into account when watching.
It is important to note that when using Miracast, the load falls on the Wi-Fi module and the processor, so in games with high graphics you may experience input lag (Input lag). This isn't a problem for office tasks and video viewing, but for fast-paced shooters, a wired connection is better.
Streaming via the LG TV Plus app and DLNA
If standard Windows tools are unstable or you need to stream a specific file rather than the entire screen, consider using DLNA technology. It allows you to stream media content (photos, videos, music) directly from your computer's storage to your TV.
In Windows, this feature is called "Media Streaming." To enable it, go to "Settings" → "Apps" → "Media Playback." Here, you need to enable streaming and select your TV. LG from the list of allowed devices.
Once set up, you can simply right-click on any video file or photo, select "Cast to device," and select your TV. The file will open in your TV's default player.
| Characteristic | Miracast (Screen Casting) | DLNA (Streaming) |
|---|---|---|
| Content type | Full screen, games, browser | Files (video, photos, music) |
| PC addiction | High (screen must be active) | Low (you can minimize the window) |
| Quality | Depends on Wi-Fi signal | Original file quality |
| Control | From a computer | From the TV remote control |
LG also offers an official app. LG TV Plus (formerly LG Smart View) for mobile devices and PCs, which simplifies content management. It not only lets you stream media files but also use your smartphone as a remote control, which is especially convenient when typing in YouTube search.
Using AirPlay 2 for macOS and iOS users
Apple device owners are even luckier: most modern LG TVs (2019 models and newer with webOS 4.0 and above) have built-in support AirPlay 2This means that you don't need to install any additional applications.
To mirror your MacBook or iPhone, make sure your devices are on the same network. On your Mac, click the Control Center icon in the menu bar and select "Screen Mirroring," then select your LG TV. On your iPhone, use Control Center → Screen Mirroring.
When you connect for the first time, you may see a message on your TV screen. access code, which you need to enter on your computer or smartphone. This is a security measure to prevent others from broadcasting content to your screen without permission.
- 🍏 AirPlay 2 provides minimal latency and high picture quality.
- 🔒 Multi-player support allows multiple devices to queue videos.
- 🎵 The system automatically switches the sound to the TV when the broadcast starts.
If the AirPlay option doesn't appear in the list of available devices on your Apple devices, check your TV settings. Go to Settings → Connection → AirPlay and make sure the feature is enabled. It's also worth checking whether the TV is in "Do Not Disturb" or "Guest Mode" mode.
Why might AirPlay not work?
AirPlay on LG TVs may not work if AP Isolation is enabled on the router or if you're using a corporate network with strict port restrictions. Outdated versions of iOS/macOS may also cause the issue.
Third-party programs for advanced features
The built-in tools are good, but sometimes their functionality is lacking. Third-party apps allow you to mirror Chrome browser tabs, stream video from DRM-protected sites, or provide access from any device online.
One of the most popular programs is LetsView or AirServerThey are installed on a PC and sometimes require a companion app to be installed on the TV (although they often work through the TV browser). These programs create a virtual receiver that emulates standard protocols.
⚠️ Important: When installing third-party software, carefully monitor any additional offers. Some free versions may contain ads or install unnecessary toolbars in your browser. Download programs only from the developers' official websites.
Another powerful tool is the Google Chrome browser. It has a built-in function Broadcast (Cast). By clicking the three dots in the upper right corner and selecting "Cast," you can send a tab or the entire screen to your TV if it supports Chromecast built-in (which is true for many LG models).
For gamers who want to play PC games on TV with minimal lag, there are specialized solutions like Steam LinkThe app is available in the LG Content Store. It allows you to stream games from your PC to your TV using a controller connected to the TV or PC.
Diagnosing problems and improving connection quality
Even with proper setup, glitches may still occur: image stuttering, audio and video out of sync, or a complete connection loss. Most often, this is due to congestion on the Wi-Fi channel or a weak signal.
Try rebooting your router by simply unplugging it for 10-15 seconds. This will clear the cache and force the device to select a less crowded channel. Reconnecting your TV to the network also helps: delete the network in the TV settings and reconnect using the password.
If problems persist, check the distance between the router and the TV. Walls, mirrors, and appliances (microwaves, refrigerators) can significantly interfere with the signal. Ideally, the router should be directly visible or behind a thin partition.
- 📉 Reducing the resolution of the broadcast image can eliminate lag on weak Wi-Fi.
- 🔌 Connecting your PC to your router via a LAN cable will reduce bandwidth and improve stability.
- 📡 Switching to the 5 GHz band radically solves problems with interference from neighbors.
In some cases, resetting your TV's network settings to factory defaults can help. This will delete all saved passwords and IP settings, which can resolve address conflicts on your local network.
Frequently Asked Questions (FAQ)
Why doesn't my computer see my LG TV in the list of devices?
The most common issue is that the devices are connected to different networks (for example, one to a guest network and the other to the main network) or client isolation is enabled on the router. Also, check whether the "DLNA" or "Media Player" function is enabled on the TV itself.
Is it possible to transmit images from a PC to a TV via Wi-Fi Direct without a router?
Yes, Miracast (Wi-Fi Direct) technology allows you to connect your PC and TV directly, bypassing the router. However, for the initial handshake connection, having a shared network often simplifies the process, even though technically the data transfer is direct between the devices.
The TV shows a picture, but there is no sound. What should I do?
In Windows, you need to switch the audio output device. Click the speaker icon in the system tray, select the up arrow, and select your LG TV from the list of output devices (e.g., "LG webOS TV").
Does streaming images affect internet speed?
Yes, streaming takes up a significant portion of your Wi-Fi bandwidth. If you're watching 4K video from your PC to your TV, other devices on the network may experience a speed bottleneck. It's best to use the 5 GHz band to minimize the impact.