Modern technologies allow you to completely eliminate unnecessary wires, turning your living room into a full-fledged multimedia center. Wireless connection Connecting your PC to your TV opens up access to a huge array of content: high-definition movies, photo archives, and games on the big screen. You no longer need to find long HDMI cables or lug your laptop around the apartment to show a presentation or video.
There are several proven ways to establish this connection, each with its own characteristics and use cases. The choice of a specific method depends on operating systeminstalled on your computer and whether your display supports Smart TV. In this article, we'll cover in detail how to pair devices, the technologies behind this process, and how to avoid common setup mistakes.
Technical requirements and preliminary check
Before you begin setting up, you need to make sure that your equipment meets the minimum requirements for stable operation of wireless protocols. Both devices must be connected to the same Wi-Fi network.Otherwise, the computer simply won't be able to "see" the TV in the list of available signal receivers. This is a basic requirement, and if violated, it makes it impossible to use DLNA or Miracast technologies.
Check if your TV supports Smart TV. If you have a "regular" screen without a smart operating system, you'll need an external set-top box, such as Android TV Box or Apple TVModern models from Samsung, LG, Sony, and other manufacturers typically already have built-in Wi-Fi modules and the necessary software platforms.
Make sure your computer has the latest drivers for your network adapter. Outdated software can cause connection drops or slow data transfer rates. It's also worth checking that your Wi-Fi module isn't in power-saving mode, as this can prevent external devices from being detected.
- 📶 A stable router with standard support 802.11ac or higher for 4K video transfer.
- 📺 A TV with Smart TV functionality or a connected TV set-top box.
- 💻 A computer or laptop with Windows 10/11 or macOS installed.
- 🔌 Both devices must be within range of the router's signal.
Miracast Method: Screen Sharing Without the Hassle of Setting Up
Technology Miracast is a standard for wirelessly transmitting images and audio from a computer screen to a TV. In Windows, this functionality is implemented natively through the "Projection" feature. The main advantage of this method is that it doesn't require an internet connection, as it creates a direct Wi-Fi Direct connection between devices.
To start broadcasting in Windows 10 or 11, use hotkeys Win + KThe system will begin searching for available wireless displays. If your TV supports Miracast (often called Screen Share, Smart View, or Wireless Display), it will appear in the list. After selecting a device, the image from your PC monitor will begin mirroring on the larger screen.
It's important to note that when using this method, there may be a slight delay in the cursor or sound. This is normal for wireless technologies, but can be disruptive during fast-paced games. For watching videos or working with documents, the delay is practically unnoticeable.
If you're using macOS, Miracast isn't directly available to you, as Apple uses its proprietary AirPlay standard. Connecting your Mac to a TV that doesn't support AirPlay 2 will require installing third-party software or using an Apple TV.
DLNA and Media Servers: Viewing Content from Folders
If your goal is not to duplicate the desktop, but to run a movie or slideshow of photos stored on your hard drive, it is better to use technology DLNAIt allows the TV to see shared folders on your computer as network drives. In Windows, this feature is built into "Streaming Media Settings."
To set it up, go to the Control Panel, find the "Media Devices" section, and enable streaming. The system will prompt you to select devices that are allowed to access content. Your computer will then appear in the TV menu (usually under "Input Source" or "Media").
☑️ Setting up DLNA on Windows
There are also more advanced alternatives to built-in Windows tools. Media server programs such as Plex, Kodi or Universal Media Server, provide advanced functionality. They automatically download movie covers and descriptions and sort content, transforming a simple file list into a beautiful interface.
⚠️ Note: When using DLNA, some audio or video formats may not play if the TV does not have a built-in codec for them. In such cases, transcoding via media servers is recommended.
Comparison of wireless connection technologies
Understanding the myriad of acronyms can be challenging. Each technology is tailored to its own needs: some provide minimal latency, others high image quality, and still others ease of file management. Understanding the differences will help you choose the best solution for your situation.
Below is a table comparing the main characteristics of popular methods for connecting a computer to a TV via a WiFi network.
| Technology | Latency | Image quality | Main purpose |
|---|---|---|---|
| Miracast | Average (50-100 ms) | High (up to 4K) | Screen mirroring, presentations |
| DLNA | Absent | Original (uncompressed) | Watching movies, photos, music |
| AirPlay | Low | High | Apple ecosystem, streaming |
| Google Cast | Low | Depends on the source | Broadcasting from browser and applications |
The choice of technology directly impacts the user experience. For static content, such as vacation photos or background videos, latency is unimportant. However, for interactive tasks where system responsiveness is crucial, low-latency methods should be prioritized.
Why does the sound disappear when connecting via Miracast?
Often, the problem lies in the Windows playback device settings. After connecting the TV, you need to manually switch the audio output to the wireless device in the system tray. If the Wi-Fi driver is out of date, the audio may be out of sync.
Using Google Chrome Browser for Broadcasting
A universal tool that works on almost any modern TV with support Chromecast The Google Chrome browser is a popular choice for streaming content, or built-in Android TV. This method allows you to stream individual tabs or the entire screen, regardless of your computer's operating system.
Open your browser, click the three dots in the upper right corner, and select "Save & Share" → "Cast." A list of available devices will appear in the window that opens. You can select the source: a tab, the entire screen, or a specific file.
This method is especially convenient when displaying content from a website that doesn't have a native app on your TV. The quality of the stream depends on the computer's processor, as it encodes the video stream in real time.
Solution and troubleshooting
Even with proper setup, situations may arise where the computer doesn't see the TV or the connection constantly drops. Most often, the problem lies with Windows Firewall or antivirus settings that block incoming connections from unknown devices.
Try temporarily disabling the firewall and see if the TV appears in the list. If the issue is resolved, add an exception rule for your home network. It's also worth checking your network type: for device discovery to work correctly, the network profile must be "Private," not "Public."
Another common cause is a router's frequency separation. If your computer is connected to a 5 GHz network and your TV only operates on 2.4 GHz (or vice versa), they may not be able to see each other despite having the same network name (SSID). Make sure both devices are on the same network segment.
⚠️ Please note: TV menu interfaces and Windows versions are updated regularly. The location of settings items may differ from those described in the instructions. Always consult the official user manual for your device model.
Frequently Asked Questions (FAQ)
Is it possible to connect an old TV without Smart TV to a computer via WiFi?
The old TV itself doesn't have a WiFi module, so a direct connection is impossible. You'll need to purchase an external set-top box (such as an Android or Apple TV box) that connects via HDMI and handles the wireless signal reception.
Why does the video lag when connected via WiFi?
Lag is usually caused by a weak WiFi signal, congestion from neighboring routers, or low CPU speed when encoding the stream. Try lowering the video quality or moving the router closer to your devices.
Does WiFi signal use a lot of traffic when mirroring the screen?
Yes, streaming high-definition video puts a significant load on your local network. However, if you're not using your internet connection for other tasks, your other devices' internet speeds may temporarily decrease.
How do I turn off the sound on my computer so that it only comes through the TV?
After successfully connecting in Windows, click the speaker icon in the system tray, select the playback device, and select your TV (often identified by its model name or "Wireless Display"). The PC audio will automatically switch, but if not, select the appropriate device manually.