Modern technology has completely changed the way we approach home multimedia, eliminating unnecessary wires and cables. If you're wondering how to stream video from your computer to your TV via LG Wi-Fi, you're ready to transform your TV into a full-fledged media center. Smart TVs from the Korean brand LG are equipped with an operating system. webOS, which provides wide opportunities for streaming high-definition content without loss of quality.
There are several proven methods for accomplishing this task, each with its own features and applications. You can use built-in data transfer protocols, dedicated apps, or screen mirroring features. The choice of a specific method depends on your TV model, your computer's operating system, and the format of the files being transferred. The fastest way to view local files is DLNA, while Miracast is a better option for desktop sharing.
In this article, we'll take a detailed look at all available connection options so you can choose the best one for your situation. We'll cover network setup, software selection, and troubleshooting common connection issues. Proper network configuration will allow you to enjoy 4K content without lag or buffering.
Network requirements and equipment preparation
The first and most critical step is ensuring a stable connection between the devices. To ensure smooth video streaming from your computer to your LG TV, both devices must be on the same local network. This means both the PC and TV must be connected to the same router. If you're using a dual-band router, make sure both devices are within the same range. 5 GHz, as it provides the higher bandwidth required for 4K content.
The quality of the wireless signal directly impacts the smoothness of playback. A weak signal can lead to audio and video desynchronization or intermittent image freezing. It is recommended to place the router within line of sight or use mesh systems for uniform coverage.
⚠️ Note: If your router broadcasts a network with the same name (SSID) for both 2.4 GHz and 5 GHz frequencies, devices may automatically switch between them, causing connection interruptions. For stable operation, separate the networks in your router settings.
Check the software version on your TV. Manufacturers regularly release updates that improve network modules and data transfer protocols. Go to the settings menu and find the system updates section.
Using DLNA and Smart Share technology
Protocol DLNA (Digital Living Network Alliance) is the de facto standard for streaming multimedia content over a home network. LG TVs often implement this feature via an app. Smart Share Or simply use the built-in media player. This method is ideal for playing video files stored on your computer's hard drive without having to copy them to a flash drive.
To get started, you need to enable streaming in your Windows operating system. By default, the system may block access to media files for security reasons. You need to open "Media Streaming Settings" and allow access for your LG TV.
After setting up on your PC, go to your TV. Open the app menu and find the "Media" or "Photos & Videos" section. Your computer should appear in the list of available devices. Selecting it will give you access to shared folders.
- 📺 Open the Photos & Videos app on your LG TV home screen.
- 💻 In the list of devices, select your computer's name.
- 📂 Folder navigation is carried out using the remote control.
- ▶️ Press "Enter" on the file to start playback.
If your computer doesn't appear in the list, check the network type in Windows. The network should be marked as "Private," not "Public." Windows blocks device discovery on public networks.
Screen casting via Miracast and WiDi
Technology Miracast (known in Windows as "Wireless Display") allows you to fully mirror your computer monitor's image to your TV. Unlike DLNA, which only transfers files, Miracast streams video in real time. This makes it ideal for sharing presentations, browser games, or DRM-free content.
LG supports this feature natively. You don't need to install any additional apps on your TV. Simply press the Input button on the remote and select "Screen Share" or "Connect to Mobile Device."
On a Windows 10 or 11 computer, use the key combination Win + KThe system will begin searching for available wireless displays. When your TV appears in the list, click it to connect.
⚠️ Please note: When using Miracast, the load on the Wi-Fi channel increases significantly due to the constant video stream. A slight delay (latency) may occur between your keyboard input and the display on the TV.
Once connected, you can choose the operating mode: screen mirroring or desktop extension. In the latter case, the TV will become a second monitor onto which you can drag the video player window.
Setting up AirPlay 2 for macOS users
Apple MacBook and iMac owners are even luckier. Modern LG TVs (2019 models and newer) have built-in support for the protocol. AirPlay 2This allows you to stream videos, photos, and even your entire Mac screen to your TV without the need for additional Apple TV boxes.
The setup process is as simple as possible and integrated into the Apple ecosystem. Make sure your Mac and LG TV are connected to the same Wi-Fi network. Also, make sure AirPlay is enabled on your TV in the settings menu.
To start streaming, click the AirPlay icon in the macOS menu bar or Control Center. Select your TV from the list. For added security, a code may appear on the TV screen that you must enter on your computer.
AirPlay 2 supports multi-room audio and lets you control playback directly from your Mac keyboard. Video quality remains high, and latency is minimized thanks to protocol optimization.
- 🍏 Click the AirPlay icon in the macOS menu.
- 📺 Select your LG TV from the list of devices.
- 🔐 Enter the verification code if it appears on the screen.
- 🎬 Enjoy content in high definition.
In the AirPlay settings on your TV, you can restrict access by allowing only devices on the same network to connect, or by requiring a code each time.
Third-party applications and media servers
If built-in tools aren't enough, third-party solutions come to the rescue. Media server programs, such as Plex, Kodi or Universal Media Server, offer advanced functionality. They don't just transfer files, but can also transcode video on the fly if the TV doesn't support the original format.
For example, if you have an MKV video with a DTS audio track, and your TV can't play it, the Plex server will transcode the audio to a compatible AAC format before sending it. This requires a more powerful processor on your computer.
Installing Plex Media Server on your PC turns it into a full-fledged library. The app on your LG TV (available in the LG Content Store) allows you to beautifully design the interface with posters, descriptions, and trailers.
Why is transcoding necessary?
Transcoding is the process of recoding video or audio into another format in real time. This is necessary when the source file is in a format that the TV cannot play out of the box.
Comparison of methods and troubleshooting
To help you navigate the various connection methods, we've compiled a comparison table. It will help you quickly determine which method is best for your needs.
| Method | Quality | Delay | Best use |
|---|---|---|---|
| DLNA | Original | No | Watching movies with |
| Miracast | Depends on the network | Yes (0.5-2 sec) | Presentations, browser |
| AirPlay 2 | High | Minimum | Apple users |
| HDMI | No losses | No | Games, 4K HDR |
Users often encounter the problem that their TV simply "doesn't detect" their computer. In 90% of cases, this can be resolved by checking the Windows Firewall. Make sure the "Media Player" or "System" application is allowed in the firewall exceptions.
It's also worth checking the wireless adapter drivers on your PC. Outdated drivers may not work correctly with the new WPA3 encryption standards. Update your Wi-Fi module drivers through Device Manager.
⚠️ Note: Operating system and TV interfaces are subject to update. If menu items have different names, look for similar sections in the network or connection settings.
☑️ Connection diagnostics
Frequently Asked Questions (FAQ)
Why does video lag when streaming over Wi-Fi?
The main cause is a slow wireless connection or interference. Try switching to the 5 GHz band, moving the router closer to the TV, or lowering the video bitrate in the player settings.
Is it possible to stream videos from protected sites (Netflix, Kinopoisk)?
Miracast technology often blocks protected content (a black screen instead of video) due to the HDCP protocol. For such services, it's better to use the native app on the LG TV itself.
Does streaming work over a guest Wi-Fi network?
No, guest networks typically isolate devices from each other for security reasons. The computer and TV must be on the main private network.
How to improve picture quality when using Miracast?
In the Windows wireless display connection settings, select "Game" or "Video" mode to prioritize image quality, although this may increase latency.