Modern televisions LG Smart TV have become powerful multimedia centers, capable of playing content not only from built-in apps but also from other devices on your home network. Wireless connection is the most convenient way to transfer videos, photos, or even mirror your desktop. Wi-Fi networks eliminates the need to run long HDMI cables across the room, preserving the aesthetics of the interior and providing freedom of movement.
The process of synchronizing a computer based on Windows Connecting macOS to an LG TV can be accomplished in several ways, each with its own advantages. You can use built-in protocols. Miracast for full screen duplication or technology DLNA for streaming media files. The choice of method depends on your goals: whether you simply want to show a presentation to colleagues or play a heavy, high-definition movie on a big screen.
In this guide, we'll cover all available connection options in detail, focusing on configuring network settings, and addressing common errors users encounter. Understanding the operating principles local network This will help you avoid buffering and audio desync issues. Let's start with preparing your equipment, as this is the foundation for stable operation.
Preparation of equipment and network infrastructure
Before proceeding with software settings, you need to make sure that your equipment is technically ready for operation. The key requirement is that the TV has LG Smart TV and a computer with wireless communication modules. Most modern models released after 2012 already have a built-in Wi-Fi adapter, but older or budget versions may require an external USB dongle.
A critical point is that both devices must be on the same subnet. This means the computer and TV must be connected to the same router. If you have a dual-band router broadcasting 2.4 GHz and 5 GHz networks, make sure both devices can see each other, although modern routers typically combine them into a single logical network.
⚠️ Note: If your router is configured in Guest Network mode for one of the devices, they may be isolated from each other by the AP IsolationIn this mode, devices are prohibited from exchanging data within the local network, making connection impossible.
To ensure smooth transmission of video in 4K or HDR resolution, it is recommended to use the frequency range 5 GHzIt provides higher bandwidth, which is critical for uncompressed streaming. However, its range is shorter, so make sure the TV and router aren't separated by load-bearing walls.
Wireless display method (Miracast and Wi-Fi Direct)
The fastest way to display an image from your computer on a TV screen is to use technology MiracastIn the LG ecosystem, this feature is often called Screen Share or simply "Wireless Display." This method allows for real-time image transmission, making it ideal for displaying presentations, photos, or web surfing.
To get started, press the Input button on your LG TV remote control and find the app in the menu. Screen Share or Device ConnectorAfter starting, the TV will go into connection standby mode. On a computer with an operating system Windows 10/11 you need to use a keyboard shortcut Win + K or go to Settings through the Start menu.
- 📺 Open the app on your LG TV Screen Share from the list of sources.
- 💻 On your computer, press the combination
Win + Kto search for available displays. - 🔗 Select the name of your TV from the list of devices that appears.
- ✅ Confirm the connection on the TV screen if prompted.
It's important to note that using Miracast puts a strain on your Wi-Fi network, as it creates a direct connection or uses intensive data packet exchange through your router. If you plan to play fast-paced games, you may experience a slight input lag.input lag), so this method is less suitable for gaming than for watching videos.
What to do if the computer doesn’t see the TV?
Make sure "Projecting to this PC" is enabled on your computer. To do this, go to Settings -> System -> Projecting to this PC and set the visibility to "Everywhere" or "On safe networks." Also, check that Wi-Fi Direct is enabled in your TV settings.
Stream media via DLNA and Smart Share
If your goal is to play a movie or music album stored on your computer's hard drive, it's better to use the protocol DLNAIn LG TVs, this function is responsible for this. Smart ShareUnlike Miracast, this doesn't mirror the screen, but streams the file itself, reducing the load on the PC's processor and allowing playback control with a remote.
To implement this method, the computer must be configured as a media server. In the operating system Windows This is done through standard Streaming Media tools. You need to select the folders that will be available for viewing on the TV and assign access rights to the device. LG TV.
After setting up your computer, go to your TV menu. The app is usually located in the main menu or under the "Additional" section. Photos and videos or Smart ShareIn the list that opens, you'll see your computer's name. Logging in will give you access to shared folders. This method offers higher picture quality because the TV decodes the video stream itself using its powerful chips.
⚠️ Note: File formats matter. While modern LG TVs support most codecs, some specific audio formats (such as DTS in certain containers) may not play or may return an "Unsupported format" error. In this case, you'll need a third-party player on your PC or file conversion.
Setting up Windows sharing for LG TV
Properly configuring network settings in Windows is the key to successfully using DLNA. Often, the problem lies in the network being detected as "Public," which prevents devices from being discovered. You need to switch the network profile to "Private" to allow data exchange.
To access advanced settings, click Win + R and enter the command control to open the Control Panel. Then follow this path: Network and Internet -> Network and Sharing Center -> Change advanced sharing optionsIt's important to enable network discovery and file sharing here.
☑️ Windows network setup checklist
It is also worth checking the service's operation. UPnP (Universal Plug and Play) on your router. This is what allows devices to automatically discover each other and open the necessary ports. Without UPnP enabled, the TV may simply not see the computer in the list of available devices, even if the physical connection is established correctly.
Using third-party applications and browsers
The built-in Windows and LG tools are good, but sometimes their functionality isn't enough. For example, if you want to broadcast a browser tab Google Chrome with sound or use specific codecs. In such cases, third-party solutions come to the rescue, often offering more stability than built-in ones.
A popular solution is to use a media server. Plex or Kodi. Having installed the server part on the computer and the client application on the LG TV (through the store LG Content Store), you get a powerful interface with cover art, movie descriptions, and subtitle support. This turns your TV into a fully-fledged home theater.
Another easy way is to use the "Cast" feature in the Chrome browser. Open the video on the website, click the three dots in the browser menu, and select Broadcast... (Cast). If your TV supports Chromecast built-in (which applies to models with webOS 4.0 and later on some platforms) or has built-in Google Cast support, the image will appear on the screen instantly.
Comparing Connection Methods and Troubleshooting
Now that you've understood the various methods, it's helpful to categorize their pros and cons to choose the best one for your situation. Below is a table comparing the main characteristics of wireless connections.
| Method | Latency | Image quality | PC load | Best use |
|---|---|---|---|---|
| Miracast | Medium/High | Depends on the signal | High (coding) | Presentations, photos |
| DLNA (Smart Share) | Low | Original (no loss) | Low | Movies, music |
| Chrome Cast | Low | High | Average | Web content, YouTube |
| Plex/Kodi | Low | Original + post-processing | Minimum | Media libraries, TV series |
If you're experiencing issues such as choppy video or no sound, first check your Wi-Fi channel's congestion. Neighboring routers may be interfering. Use Wi-Fi analyzer apps on your smartphone to find a clear channel and switch your router to it.
Another common problem is audio and video desynchronization. This can often be resolved by updating the Wi-Fi adapter drivers on your computer or updating the firmware on your LG TV. Go to Settings -> Support -> Software update and check for new versions.
⚠️ Please note: The LG webOS TV interface is updated periodically. Menu layouts, app names (for example, switching from Smart Share to Photo & Video), and setup steps may vary slightly depending on the operating system version. Always consult the latest user manual for your model.
Frequently Asked Questions (FAQ)
Why doesn't my LG TV see my computer on the network?
The most likely cause is different network profiles. Make sure both devices are connected to the same network (not a guest network) and network discovery is enabled in Windows. Also, check if your antivirus or firewall is blocking the connection.
Is it possible to connect a laptop to an LG TV without Wi-Fi?
Yes, you can do this with an HDMI cable, which will ensure the best quality and the absence of lag. There are also wired adapters for smartphones (USB-C to HDMI), if you're talking about mobile devices.
How to improve picture quality during wireless broadcasting?
Use a router that supports Wi-Fi 5 (AC) or Wi-Fi 6 (AX) and connect devices to the 5 GHz band. Make sure there are no thick walls or metal structures between the router and the TV.
Does my old LG TV support Screen Share?
Screen Share (Miracast) is available on most LG Smart TV models released after 2012-2013. Older (non-smart) models require an external set-top box, such as a Chromecast or Android TV Box.