Modern technology makes it possible to transform a living room into a fully-fledged media center, and a key element here is the ability to stream content from a computer to a large screen without unnecessary wires. Wireless connection Provides access to movies, games, and presentations without the need to run HDMI cables across the room. For technology owners LG This process is made as simple as possible thanks to built-in data transfer protocols.
There are several ways to accomplish this task, each with its own advantages depending on your PC's operating system version and TV model. You can use standard tools Windows, special applications from the manufacturer or media streaming technologies. Miracast technology provides the most stable operation, as it transmits the video signal directly between devices, bypassing the router.
In this article, we'll take a detailed look at all the current device synchronization methods so you can choose the best option for your situation. We'll cover setting up screen projection, organizing your media library, and troubleshooting any issues that may arise during the setup process.
Preparatory stage and network testing
Before starting setup, ensure that both devices—the laptop and TV—are in the same network conditions. This is a fundamental requirement for most device discovery protocols to work. If your router supports dual-band mode, it's recommended to connect both devices to the network. 5 GHz, as it provides higher bandwidth for the video stream.
Check if the feature is enabled Smart Share or a similar detection option in the TV settings. Sometimes it may be disabled by default for security or energy saving reasons. Also, make sure that "Data Saver" mode isn't enabled on your laptop, as this could block the search for local devices.
⚠️ Note: If you're using a guest Wi-Fi network or client isolation on your router, devices won't be able to see each other. In this case, you'll need to adjust your router settings or connect your devices to the main network.Make sure your TV software is updated to the latest version. In older versions webOS may contain errors that prevent proper handshake with new laptop wireless adapter drivers.
☑️ Check before connection
Completed: 0 / 4Using the Connect to a Wireless Display feature in Windows
In operating systems Windows 10 And Windows 11 Native support for Miracast technology is implemented, making the connection process extremely simple. You don't need to install third-party software; just use system utilities. This method allows you to cast your entire desktop or extend it onto your TV screen.
To start the process, press the key combination
Win + Kon the laptop keyboard. The "Connection" panel will open on the right, where the system will begin searching for available displays. If the TV LG configured correctly, its name will appear in the list of available devices.After selecting the TV, a connection confirmation message may appear on the screen. Use the remote control to grant access. The laptop's image will then appear on the large screen. You can switch display modes through the menu.
System → Display, choosing between duplicating or extending the desktop.The quality of the transmitted image directly depends on the strength of the Wi-Fi signal. If you notice artifacts or cursor twitching, try moving your laptop closer to the router or TV. Miracast sensitive to interference in the air.
Streaming via the LG TV Plus app and Smart Share
Company LG offers its own software for deeper device integration. The application LG TV Plus (formerly known as LG Smart View) allows you to not only mirror your screen, but also control your TV from your laptop keyboard and transfer files directly.
Download and install the app from the official website or store Microsoft StoreOnce launched, the program will automatically scan the network and find your TV. Unlike system projection, you can select specific files to play without projecting your entire desktop onto the screen.
Function Smart Share This is especially useful for viewing photos or listening to music stored on your computer's hard drive. You can create a playlist and manage the playback queue directly from your laptop. This frees up system resources, as video decoding is handled by the TV's processor.
What should I do if the app doesn't detect the TV?
Make sure Windows Firewall isn't blocking the app. Try temporarily disabling your antivirus or adding the program to the exceptions list. Also, check that DLNA is enabled in your TV settings.
The app's interface is intuitive and divided into several tabs: Control, Screen Sharing, and Media Library. Switching between them takes seconds, making the remote less necessary.
Setting up a DLNA server to play media files
If your goal is to watch movies and not duplicate your desktop, then the technology DLNA (Digital Living Network Alliance) is the best choice. It allows the TV to view folders containing media files on the computer as external drives. Configuration is accomplished through the standard "Media Streaming" feature in Windows.
Open "Media Streaming Settings" in the Windows Control Panel. In the window that opens, click "Turn on media streaming." The system will prompt you to select devices that are allowed to access content. Find your device in the list. LG Smart TV and assign it the "Allowed" status.
After that, on the TV in the "Inputs" menu or in the launcher webOS A signal source with your computer's name will appear. Navigate to it and you'll see the folder structure. The TV may take a few minutes to index files when it first starts.
| Parameter | Description | Recommendation |
| :--- | :--- | :--- |
| Protocol | DLNA / UPnP | Home network standard |
| Video formats | MKV, MP4, AVI, TS | Depends on TV codecs |
| Audio tracks | Dolby Digital, DTS, AAC | Check TV support |
| Subtitles | SRT, SUB | Better external files |
It's important to note that DLNA doesn't allow desktop control. It's purely a file sharing solution. If the video file format isn't supported by the TV, playback won't start, unlike screen mirroring, where the PC encodes the image itself.
Connecting MacBook and Apple devices via AirPlay 2
Equipment owners Apple can take advantage of the built-in protocol support AirPlay 2, which is available on many modern TV models LG (starting from 2019 and newer, as well as updated models from earlier years). This ensures native integration without installing additional software on the TV.
To connect, make sure your macOS is up to date. Click the "Screen Mirroring" icon (two rectangles) in the menu bar and select your TV from the list. If prompted, enter the verification code that appears on the TV screen into the window on your computer.
AirPlay 2 not only allows you to mirror your screen but also output audio to your TV's audio system or connected speakers. Image quality is typically higher than with Miracast due to the more efficient compression codecs used by the Apple ecosystem.
⚠️ Note: AirPlay 2 may be disabled by default in your TV's privacy settings. Go toSettings → Connect to device → AirPlay settingsand activate the function.📊 Which connection method do you use most often?Miracast (Windows)DLNA (Files)AirPlay (Apple)Third-party programsWhen using AirPlay, the laptop and TV must be on the same subnet. If you have a complex network infrastructure with multiple access points, ensure they don't isolate the multicast traffic required for the protocol to work.
Solving common connection problems and errors
Despite the ease of setup, users often encounter situations where devices fail to see each other or the connection constantly drops. One of the most common causes is the devices' clocks being out of sync or using different Wi-Fi security protocols (e.g., WPA2 vs. WPA3).
If your laptop detects your TV but the connection drops after a few seconds, try updating your PC's wireless adapter drivers. Standard Windows drivers often don't work correctly with projection features. Visit your laptop manufacturer's website and download the latest driver for your Wi-Fi adapter model.
Another common problem is antivirus software. Third-party firewalls can block the ports needed to establish a handshake between devices. Try temporarily disabling network protection or creating a rule for incoming connections.
Why is there no sound when connected via HDMI over Wi-Fi?
Check the audio output device in Windows. Click the speaker icon in the system tray and select the TV from the list of playback devices. Sometimes the switch doesn't happen automatically.
If nothing helps, reset the network settings on your TV. In the menu webOS go to
Settings → All settings → General → Factory reset(You can choose to reset only the connection settings.) This will delete saved Wi-Fi profiles and may fix a software glitch.Why isn't my TV showing up in the list of available devices?
Most often, the problem is that the devices are on different subnets (for example, one is connected to guest Wi-Fi and the other to the main Wi-Fi) or that client isolation is enabled on the router. Also, make sure the signal reception app is running on the TV, if required for the selected method.
Is it possible to play games on TV via Wi-Fi connection?
Technically, this is possible, but not recommended for fast-paced shooters or racing games. Input lag over a wireless connection, even under ideal conditions, is 30-100 ms, which is noticeable. For strategy games or solitaire, this is perfectly acceptable.
Does connecting a laptop affect internet speed?
When using DLNA, traffic flows within the local network and doesn't consume internet bandwidth. However, when using Miracast or AirPlay, some traffic may pass through the router, taking up airtime and potentially reducing speeds for other devices if the bandwidth is congested.