Modern multimedia systems make it easy to share content from a large screen, and the question of how to mirror a computer screen to a TV via Wi-Fi is becoming increasingly relevant with the growing popularity of streaming services and online cinemas. Instead of huddling around a laptop monitor or trying to discern details on a tablet, users are increasingly opting for screen sizes of 50, 65, and more inches. This creates an immersive experience that's impossible to achieve with standard displays.
Wireless connectivity eliminates the need to drag long HDMI cables across the room, which can be a cluttered and tripping hazard. Wireless data transmission technologies Today, they've reached such a level of development that signal latency is minimal, and picture quality is often comparable to a wired connection. However, despite the simplicity of the concept, the setup process may vary depending on the operating system and TV model.
In this article, we'll take a detailed look at all available connection methods, from built-in Windows features to specialized apps. You'll learn how to set up Miracast, use DLNA protocols, or resort to third-party software to achieve the perfect result. Proper network configuration and understanding how equipment operates will help you avoid common errors and enjoy content without interruption.
Technical requirements and equipment preparation
Before setting up, you need to ensure your equipment supports the necessary features. For successful wireless streaming, Wi-Fi is key on both your computer and TV. Older Smart TV models may not have built-in support for modern video transmission protocols, requiring the use of additional adapters.
Both devices must be on the same local network. This means that if your laptop is connected to the guest Wi-Fi and your TV is connected to the main Wi-Fi, the connection will fail. Bandwidth is also important to consider: for high-definition video streaming, 4K HDR A stable 802.11ac (Wi-Fi 5) or later signal is required.
2.4 GHz only
Dual-band (2.4 + 5 GHz)
Wi-Fi 6 (AX)
I'm using a wired connection-->
Check that your PC's network adapter drivers are up-to-date. Outdated software can cause connection instability or even the complete loss of network visibility. In some cases, simply restarting the router can help, as this clears the cache and redistributes IP addresses.
⚠️ Note: If your router is distributing the network on both 2.4 GHz and 5 GHz frequencies under the same name, try separating them or forcing both devices to connect to the 5 GHz network for better performance.
- 📺 A TV with Smart TV support and Wi-Fi Direct or Miracast.
- 💻 A computer or laptop with Windows 10/11 or macOS operating system.
- 📡 A router that supports Wi-Fi N (300 Mbps) or higher.
- 🔌 Stable power supply for all devices during setup.
Using the built-in Projection feature in Windows
Windows 10 and 11 operating systems are equipped with a native tool for wireless display of images, which is based on technology MiracastThis is the easiest method and doesn't require any additional software. To start the process, make sure the request reception function is enabled on your TV.
Press the key combination Win + K on your computer's keyboard. The "Connection" panel will open on the right, where the system will begin searching for available wireless displays. If your TV doesn't appear in the list, it may not be in connection standby mode or it may be on a different subnet.
☑️ Connection algorithm via Win+K
Once paired, you can select the projector's operating mode. The system will offer several options: screen mirroring, desktop extension, or displaying the image only on the second screen. For watching movies, the "Second Screen Only" mode is optimal, as it reduces the load on the PC's graphics card.
What should I do if the "Connect" button is inactive?
This feature may be disabled in the system settings. Go to Settings → System → Projecting to this PC and ensure that "Projecting to this PC" is set to "Always on" or "Available on secure networks." Also, check that the "Wireless Display" component is installed under "Additional components."
It's important to note that when using Miracast, the image is transmitted directly between devices, but the router still participates in the handshake process. Therefore, connection quality directly depends on the airwave congestion. If you notice artifacts or audio desync, try moving your computer closer to the router.
Setting up DLNA for media streaming
Protocol DLNA (Digital Living Network Alliance) differs from Miracast in that it broadcasts specific media files rather than the entire screen. This is ideal if you need to show vacation photos or play a movie stored on your hard drive without being distracted by messaging notifications.
In Windows, this feature is implemented through "Media Streaming Settings." Open Control Panel, find the appropriate section, and enable streaming. Your computer will become a media server, and your TV will see it as a content source.
You can use the standard Windows Media Player or more advanced alternatives to control playback. Simply right-click the video file, select "Cast to device," and select your TV. Playback controls (pause, rewind) will be available via your TV remote.
| Protocol | Transmission type | Delay | Best use |
|---|---|---|---|
| Miracast | Screen cloning | Low | Presentations, browser, games |
| DLNA | Streaming media | Absent | Movies, music, photos |
| Chromecast | Casting tabs | Average | YouTube, streaming services |
| AirPlay | Screencasting | Low | Apple ecosystem |
Some users are experiencing issues with their TV not being able to see their computer's folders. In this case, you should check your Windows Firewall settings. The network must be marked as "Private" rather than "Public" to allow the device to be discovered.
⚠️ Please note: The DLNA protocol does not support streaming DRM-protected content from some paid streaming apps (e.g., Netflix in a browser). For these services, it's better to use built-in apps on your Smart TV.
Broadcasting via Google Chrome browser
If built-in Windows tools don't work or you need additional features, a browser comes to the rescue. Google ChromeIt has a built-in Cast feature that allows you to cast individual tabs or your entire desktop to Chromecast-enabled devices or Android TV.
Open your browser and click the three dots in the upper right corner, then select "Save & Share" → "Cast." A list of available devices will appear in the menu that opens. Before starting the cast, click "Sources" to select what you want to show: a tab, a file, or the entire screen.
The advantage of this method is its cross-platform compatibility: it can even stream from macOS or Linux. Furthermore, Chrome often handles video stream encoding better, providing a smoother picture even with a weak signal.
It's worth keeping in mind that streaming the entire screen through a browser places additional load on the processor, as the video stream is encoded using software. On older computers, this may cause system lag.
Third-party applications and software solutions
When standard methods fail to produce the desired results, specialized programs come into play. One of the most popular solutions is Let's View or AirServerThese applications create a virtual receiver on the PC or, conversely, allow the computer to view the TV as a native monitor.
For Apple ecosystem users, the issue of using AirPlay on Windows TVs is relevant. Many modern Samsung, LG, and Sony models support AirPlay 2 natively. If your TV is older, you can install an AirPlay emulator app directly on your TV from an app store (for example, AirScreen).
There are also universal solutions like TeamViewer or AnyDesk, but they are designed more for remote control and have high latency, making them unsuitable for viewing video. For multimedia, specialized media servers like Plex.
- 🚀 Plex — organizing your personal media library with a beautiful interface.
- 🖥️ AirServer — turns TV into an AirPlay/Miracast receiver.
- 📱 ApowerMirror - powerful mirroring with PC control.
- 🎮 Steam Link — the ideal solution for streaming games to your TV.
When installing third-party software on your TV (if it's an Android TV), carefully read the permissions. Some free apps can overload the interface with ads, which can be distracting.
Solving connection and signal quality issues
Even with proper setup, users may experience artifacts, connection drops, or no sound. Most often, the problem stems from Wi-Fi congestion from neighboring routers. Using a Wi-Fi analyzer can help find a free frequency.
If the image is choppy or has low resolution, try lowering the output quality in Windows graphics settings. Also, make sure your TV's Wi-Fi module's power-saving modes are disabled, as they can interrupt the connection when there's no active command.
If the sound is output to your computer instead of your TV, check your playback device settings. Click the speaker icon in the Windows tray, select the output device, and select your TV or receiver.
⚠️ Note: Menu interfaces and item names may vary depending on your TV's firmware version and graphics card model. If you don't find the option described, consult the manufacturer's official instructions.
Sometimes resetting network settings helps. In Windows, this can be done via the command line by running the command netsh winsock reset, after which a reboot is required. On the TV, simply perform a full network reset in the appropriate section of the menu.
Frequently Asked Questions (FAQ)
Is it possible to share a screen without a Smart TV using only Wi-Fi?
Without a built-in Smart TV module, your TV won't be able to receive a signal directly. However, you can purchase an external adapter (such as a Google Chromecast, Amazon Fire Stick, or Mi Stick) that plugs into the HDMI port and adds Smart TV functionality and wireless streaming support to your TV.
Why is there no sound during the broadcast?
Most likely, the "Speakers" output device is selected by default in Windows. Click the sound icon in the lower-right corner of the screen, expand the list of devices, and select your TV. If it's not listed, check that the "Show disabled devices" option is enabled in the sound panel.
Does screencasting affect internet speed?
Using technologies like Miracast or Wi-Fi Direct, traffic flows directly between devices, without consuming internet bandwidth. However, if you're streaming online video (YouTube, Netflix), your internet speed is impacted because the content is downloaded from the network.
What is the maximum Wi-Fi range for streaming?
The signal is stable within a single room or adjacent spaces (up to 10-15 meters without obstacles). Walls, especially concrete with reinforcement, significantly weaken the signal. For longer distances, a wired connection or repeaters are better.