Modern technology allows you to eliminate unnecessary cables and enjoy content on a large screen without complicated manipulation. Streaming video from a laptop to an LG TV via Wi-Fi has become the standard for viewing movies, presentations, and photos in high definition. Smart TV owners gain instant access to their computers' multimedia libraries using built-in data transfer protocols.
There are several proven ways to accomplish this task, each with its own features and advantages. The method you choose depends on the model of your LG TV, Windows operating system version, and the type of content being transmitted. In this article, we'll take a detailed look at all current wireless connection options.
Wireless transmission Data streaming requires a stable connection and properly configured network equipment. Before starting the process, ensure both devices are connected to the same local network, as this is critical for device detection. Ignoring this rule is the most common reason for failure to start streaming.
Equipment preparation and network diagnostics
The first step to successful synchronization is checking the basic settings of the router and the devices themselves. Users often try to connect a laptop to a TV, forgetting that the technology requires a router. Miracast And DLNA A shared subnet IP address is required. If your router broadcasts two different networks (for example, 2.4 GHz and 5 GHz) with different names (SSIDs), make sure both devices are connected to the same network.
In the Windows operating system, you need to enable discovery features. To do this, go to the Control Panel and find the section responsible for network settings. You'll need to enable network discovery and file and printer sharing. Without these services enabled, your computer will be "invisible" to external devices.
On the LG TV side, you also need to perform some preliminary steps. In the settings menu, usually in the section Network → Connections, the external signal reception mode must be activated. In newer models, this function is enabled by default, but in older firmware versions, it sometimes needs to be activated manually through the app. Screen Share or similar.
⚠️ Note: If you have a dual-band router and your laptop is connected to the 5 GHz band and your TV to the 2.4 GHz band, streaming may not start or may experience delays. In some cases, combining the networks under a single name in the router settings may help.
- 📶 Make sure both devices are connected to the same router.
- 💻 Check if network discovery is enabled in Windows.
- 📺 Activate the Screen Share function in the LG TV menu.
- 🔄 Restart your router if your network is unstable.
After completing these simple steps, your data transfer infrastructure will be ready. Now you can move on to choosing the streaming method that best suits your needs.
Cast your screen using the Connect to Wireless Display feature
The most popular and universal way is to use technology Miracast, which is implemented in Windows 10 and 11 through the "Projection" feature. This method allows you to completely mirror the image from your laptop monitor onto your TV screen. The image quality remains high, and latency is minimal, making the connection suitable for even slideshows or video viewing.
To start the process, press a key combination on your laptop keyboard Win + KA sidebar will appear on the right, searching for available devices. If your LG TV is in connection standby mode (or simply turned on and connected), it will appear in the list. Click on your model name, and the system will begin establishing a connection.
You may see a connection confirmation message on your TV screen. Use your remote control to select "Confirm" or "Accept." Your Windows desktop will then appear on the big screen. You can choose to mirror your screens or extend your desktop to use your TV as a second monitor.
Miracast Connection Checklist
It's important to note that this method creates a direct Wi-Fi connection between the laptop and TV (Wi-Fi Direct), so even if the router is temporarily disconnected, the picture may be preserved. However, an internet connection is required for the initial handshake. If you plan to watch 4K video, ensure your Wi-Fi signal is strong enough, otherwise compression artifacts may occur.
Using DLNA to play media content
If your goal is not to duplicate your desktop, but to watch movies, photos or listen to music stored on your laptop's hard drive, then the technology DLNA It's a perfect fit. It allows the LG TV to access the computer's media library and play files using its built-in player, which often results in better video decoding quality than screen streaming.
To use this method in Windows 10/11, simply open the folder containing the video file, right-click it, and select "Cast to device." Select your TV from the list that appears. LG Smart TVThe standard Windows player will launch, controlling playback, and the video will be sent directly to the TV.
An alternative option is to use third-party software such as DLNA Server or the built-in Windows media server. In the media streaming settings, you can configure which folders will be available to the TV. This is convenient if you have a large movie library and want constant access to it without unnecessary clicks.
| Characteristic | Miracast (Screen Casting) | DLNA (Media Server) | AirPlay 2 |
|---|---|---|---|
| Laptop load | High (encodes video) | Low (streaming only) | Average |
| Picture quality | Depends on Wi-Fi signal | Original (lossless) | High |
| Control | From a laptop | From a TV remote or laptop | From an Apple device |
| File formats | Any (screen broadcast) | Supported TVs | Supported TVs |
The advantage of DLNA is that you can start a movie, turn off your laptop screen, or even minimize the window, and playback on your TV will continue uninterrupted. In this case, the computer simply acts as a data storage device.
Connecting MacBook and Apple devices via AirPlay 2
Apple device owners are even luckier, as modern LG TVs are equipped with built-in protocol support. AirPlay 2This allows you to stream videos, photos, and even the entire macOS or iOS screen to your TV without installing additional apps. Integration is system-wide, ensuring high stability.
To get started, make sure your MacBook and LG TV are connected to the same Wi-Fi network. On your Mac, open Control Center from the menu bar and select Screen Mirroring. Your TV should appear in the list of available devices. When you first connect, a four-digit code may appear on the TV screen. Enter it on your computer.
AirPlay 2 functionality on LG TVs not only allows for mirroring but also uses the TV as an external monitor with a separate sound system. It also supports streaming video from Safari and Chrome browsers with a single click via the AirPlay button in the video player interface. This is especially convenient for viewing content from websites that block screen recording.
⚠️ Note: AirPlay 2 is only available on LG TVs with webOS 4.0 or higher (2018 models and newer). Older models will require the use of third-party emulators.
If you don't see your TV in the list of AirPlay devices, check the privacy settings on the TV itself. In the menu Support → AirPlay You can set up a code entry requirement each time you connect, or allow automatic login for devices on the same network.
Third-party apps and browser streaming
Sometimes built-in Windows or macOS tools don't work correctly due to driver conflicts or specific firewall settings. In such cases, third-party solutions come to the rescue. One of the most popular is the app Lg Tv Plus (available in the Microsoft Store), which serves as the official remote and media library.
Another powerful tool is the Google Chrome browser. If you're watching a video in an online cinema through the browser, you can click the menu (the three dots in the corner) and select "Cast." The browser will find your LG TV (since it supports Chromecast built-in) and cast a tab or the entire screen. This is a great way to bypass DRM restrictions that sometimes block system casting.
Why might browser streaming not work?
Often, the problem lies with your antivirus or firewall, which is blocking local connections. Try temporarily disabling your network protection or adding an exception rule for your browser and ports 80/443.
There are also universal server programs such as Plex or KodiInstalling the server component on a laptop and the client component on a TV (via the LG Content Store) creates a powerful media system with beautiful cover art, movie descriptions, and automatic sorting. This turns a regular TV into a fully-fledged media center.
Solving common connection problems and errors
Despite the ease of setup, users often encounter difficulties. The most common issue is that the TV doesn't detect the laptop. In 90% of cases, this can be resolved by checking the network type in Windows. If the network is marked as "Public," the system blocks detection. Switch the network profile to "Private" in the Wi-Fi settings.
Another common complaint is audio and video desynchronization or intermittent image flickering. This is a clear indication of insufficient Wi-Fi bandwidth. Try clearing the channel of other active downloads or moving closer to the router. Using the 5 GHz band instead of 2.4 GHz significantly improves the situation.
- 🚫 "Device not found" error: Check if UPnP is enabled in your router settings.
- 🔒 Antivirus blocking: add the TV to the list of trusted devices.
- 📉 Low speed: Close torrents and other background downloads.
- 🔄 Driver failure: Update your graphics card and wireless adapter drivers.
If nothing helps, try resetting the network settings on your LG TV via the menu Settings → Network → Advanced Wi-Fi settings → Change password/ResetThis will clear the connection cache and may fix the software glitch.
Questions and Answers (FAQ)
Is it possible to stream video if there is no internet, only a local network?
Yes, Miracast and DLNA don't require internet access; the router needs to create a local network and both devices need to be connected. However, some apps may require online licensing.
Why is there no sound on the TV when screencasting?
You need to manually switch the audio output device in Windows. Click the speaker icon in the system tray, select the up arrow, and select your LG TV (often listed as the TV model or "Intel/Realtek Audio") instead of your laptop speakers.
Does my old LG TV support wireless streaming?
If your TV doesn't have Smart TV (webOS), you won't be able to connect it directly via Wi-Fi. You'll need to purchase an external set-top box (such as an Android Box or Chromecast) to handle the signal reception.
How to reduce lag when gaming on TV via Wi-Fi?
Wireless gaming almost always introduces lag. If the game supports it, enable "Game" mode in your TV's picture settings. However, for a comfortable gaming experience, it's best to use an HDMI cable, as Wi-Fi physically can't provide response speeds comparable to a wired connection.