Modern technologies make it possible to completely eliminate unnecessary cables in the living room, providing convenient interaction between a personal computer and a large TV screen. Users often wonder how to connect a computer to an LG TV wirelessly via Wi-Fi to stream movies, presentations, or play games without loss of quality. Wireless connections have become the standard thanks to the high speed of modern routers and the introduction of advanced multimedia transmission protocols.
The main advantage of this connection is the absence of physical restrictions, which allows you to control content from anywhere in the room. Miracast technology and built-in platform functions webOS Make the setup process as simple as possible, even for inexperienced users. You don't need to buy additional adapters or long HDMI cables if both devices are on the same local network.
In this article, we'll take a detailed look at all available device synchronization methods, from built-in Windows system tools to specialized software. You'll learn about security settings, ways to eliminate lag, and methods for improving image quality. For stable, tear-free 4K video transmission, it's critical that both your router and receiver support Wi-Fi 5 (AC) or later.
Preparing equipment and network for synchronization
Before proceeding with software setup, you need to ensure your equipment is technically ready. A basic requirement is a Wi-Fi module on both your computer and TV. LG Smart TVMost modern models support dual-band operation, which is preferable for transmitting heavy video content.
Both devices must be connected to the same wireless network. If your router broadcasts signals on the 2.4 GHz and 5 GHz frequencies with different names (SSIDs), make sure the PC and TV can see each other while on the same network segment. Sometimes, client isolation at the router level can prevent device detection, so check your router's security settings.
Check the software on both devices is up to date. On the TV, this can be done through the menu. Settings → All settings → General → About TV → Check for updatesOn your computer, make sure the wireless adapter drivers are updated to the latest version available on the manufacturer's website.
⚠️ Warning: If you are using a guest Wi-Fi network or a corporate router with a strict security policy, direct connections between devices may be blocked by the network administrator.
Connection stability directly depends on the distance to the router and the presence of physical obstacles. Walls, mirrors, and household appliances can cause interference, especially in the crowded 2.4 GHz band.
Using the built-in Projection feature in Windows
Windows 10 and 11 operating systems have a built-in tool for wireless image transmission, which is based on the standard MiracastThis is the easiest method and doesn't require installing any third-party software. LG TVs with webOS 3.0 and higher support this feature out of the box.
To get started, press the Input button on your TV remote and find the "Screen Share" or "Mobile Device Connection" app. On some models, it may simply be called "Connection Manager." Once launched, the device's name will appear on the screen, and a connection will be established.
On your computer, press the key combination Win + K to open the "Connection" sidebar. The system will begin searching for available displays. Once your TV appears in the list, LG WebOS TV, click on it to start pairing.
- 📺 A confirmation request may appear on the TV screen - use the remote control to agree.
- 🔄 You can change the operating mode through the "Projection" menu on your PC: second screen only, duplicate, or extend the desktop.
- ⚙️ In Windows system settings, you can adjust the graphics quality and disable the mouse cursor on the broadcast image.
This method is ideal for office presentations or photo display, as it ensures minimal input lag. However, with fast-paced games or high-bitrate video playback, audio and video may become out of sync.
☑️ Check before connection
Stream media via DLNA and media server
If your goal is not to duplicate the entire desktop, but to play a specific movie or music album, it is better to use the protocol DLNALG TVs work great with media servers, allowing you to stream content directly from your computer's hard drive.
In Windows, this feature is implemented through "Media Streaming." Go to "Media Streaming Settings" in Control Panel and make sure it's enabled. Find your TV in the list of devices. LG and allow him access to libraries.
After setting up, press the "Home" button on the TV remote and select the "Device Connector" or "Media" (photos, videos, music) signal source. You'll see your computer's folders and can start playing the file, which will be processed by the TV, offloading your PC.
| Protocol | Purpose | Delay | Quality |
|---|---|---|---|
| Miracast | Screen mirroring | Low/Medium | Depends on the signal |
| DLNA | Viewing files | Absent | Original (uncompressed) |
| AirPlay 2 | Streaming from Apple | Low | High |
| Chromecast | Broadcast from a browser | Average | Adaptive |
The advantage of DLNA is that the TV decodes the video stream itself. This means you can turn off your PC monitor or minimize windows, and playback will continue uninterrupted. Most popular formats are supported, including MKV, MP4, and AVI.
Third-party programs for advanced features
Windows' built-in tools are sometimes insufficient, especially when streaming the Chrome browser or specific applications. In such cases, third-party solutions come to the rescue, often offering more stability than their built-in counterparts.
One of the most popular utilities is LetsView or AirServerThey are installed on the PC and (in some cases) require launching an app on the TV via the LG Content Store. These programs create a virtual bridge that is accessible to both devices.
For users of the Apple ecosystem who own a Mac, the technology is relevant AirPlay 2Many new LG models support this protocol natively. Simply select the AirPlay icon in the macOS menu and choose your TV from the list to instantly display the image.
Why might AirPlay not work?
AirPlay 2 is only available on LG TVs with webOS 4.0 and higher (2018 models and newer). Older models will require a separate receiver app, such as "AirScreen," from the app store.
Using specialized software often allows you to manually adjust the bitrate, which is critical for weak networks. You can reduce image quality for smoothness if you experience stuttering.
LG TV Setup and Troubleshooting
If the connection fails or is unstable, the problem often lies in the TV's settings. Go to the menu Settings → All settings → Connection → Connect to a mobile device and make sure the Receiver function is active.
A common cause of problems is an outdated IP address or an address conflict on the local network. Try restarting your router, computer, and TV simultaneously. It's also worth checking if your router is limiting the speed for certain devices.
In some cases, your antivirus or Windows Firewall blocks incoming connections. When you first connect, the system will ask you about your network type. Select "Private Network" to allow device discovery.
⚠️ Note: The menu interface may vary depending on the webOS version. If you don't find the item you're looking for, please refer to the instructions for your specific TV series.
To diagnose signal quality, you can use the built-in network tests in the TV menu. If the data reception speed is below 20 Mbps, streaming 4K content over Wi-Fi will be difficult.
Frequently Asked Questions (FAQ)
Is it possible to connect an old computer without a Wi-Fi module?
Yes, if your PC doesn't have built-in Wi-Fi, you can purchase an external USB adapter. Alternatively, you can connect your computer to the router via a LAN cable and leave the TV on Wi-Fi—they'll be on the same network and will be able to see each other.
Why is the image on the TV not full screen?
This is an aspect ratio setting. On your LG remote, find the "Aspect Ratio" button (often looks like a rectangle or magnifying glass) and select "Just Scan" or "16:9" to remove black bars and stretch the image.
Is there any audio delay when connected via Wi-Fi?
When using Miracast, latency is minimal, but possible. When using DLNA, there is no latency, as buffering occurs on the TV. For gaming, a wired HDMI connection is best.
Do all LG TVs support wireless connectivity?
Almost all Smart TV models released after 2013 have Wi-Fi. However, older models without Smart TV (regular LED/LCD) will require the purchase of a separate set-top box (Android Box or Apple TV) for wireless connection.