How to Mirror Your Computer Screen to a TV via Wi-Fi in Windows 10: A Complete Guide

Wirelessly broadcast your computer screen to your TV via Wi-Fi Windows 10 Opens up new possibilities for presentations, gaming, watching movies, and working remotely. However, many users encounter problems: the image lags, the sound drops out, and the connection constantly drops. The cause is often not a weak router signal, but an incorrectly selected broadcast method or incorrect system settings.

In this article we will look at All current methods for screen sharing via Wi-Fi, including built-in Windows 10 features (such as Miracast), third-party programs like Steam Link or AirParrot, as well as specialized solutions for Smart TV from Samsung, LG And SonyYou'll learn which method provides minimal lag for gaming, how to avoid sound problems, and why some TVs don't recognize a computer on the network. We'll also cover common errors and how to fix them without calling a technician.

1. Preparing the system: what you need to check before broadcasting

Before setting up your broadcast, make sure your equipment meets the minimum requirements. The main conditions for successful screen sharing via Wi-Fi:

• 🖥️ Computer: Windows 10 versions 1803 or newer, Wi-Fi adapter with support Miracast (most models after 2015). You can check the OS version in Settings → System → About.
• 📺 TV: Smart TV with Wi-Fi and support Miracast (or DLNA (for alternative methods). Budget models may require an external adapter, for example, Google Chromecast or Amazon Fire Stick.
• 📶 Net: Router that supports the standard 802.11ac (or at least 802.11n) and frequency 5 GHz for minimal delays. At frequency 2.4 GHz There may be lags when broadcasting video in 4K.

If your TV was released before 2016, it most likely does not support Miracast "out of the box." In this case, you will need to either update the firmware (via the menu Settings → Support → Software Update), or use external devices. For example, Microsoft Wireless Display Adapter connects to the HDMI port and adds support Miracast even on old TVs.

⚠️ Attention: On laptops with hybrid graphics (Intel + NVIDIA/AMD) The stream may be unstable due to driver issues. Before setting up, update your video card drivers via device Manager or the manufacturer's official website.

2. Method 1: Windows 10's built-in Miracast feature

Miracast — is a wireless screen sharing standard supported by most modern devices. In Windows 10, it is integrated at the system level and does not require any additional software. The main advantage of this method is minimal latency (approx. 30–50 ms), which is critical for games or presentations.

To start broadcasting:

1. Press the keyboard shortcut on your computer Win + K. The panel will open. Connect.
2. Select your TV from the list of available devices. If it's not there, make sure the TV is in the "Show" mode. Screen Mirroring (on Samsung This Settings → General → Screen Mirroring, on LG — Settings → Network → Miracast).
3. Confirm the connection on your TV (you may be asked to enter a PIN code).

If the connection fails, check:

• 🔄 Compatibility: Some televisions (eg. Sony Bravia 2017–2018) require inclusion Miracast Manually through the service menu. For instructions, see the user manual.
• 🔌 Nutrition: On laptops, streaming may be interrupted due to power saving. Go to Control Panel → Power Options and select the scheme High performance.
• 🛡️ Firewall: Temporary shutdown Windows Defender or a third-party antivirus (for example, Kaspersky) sometimes solves the problem of connection blocking.

⚠️ Attention: When broadcasting via Miracast By default, sound is sent to the TV. If it's missing, check your Windows sound settings: Settings → System → Sound → select the output device with the name of your TV.

What to do if Miracast doesn't work on an old PC?

If your computer does not support Miracast (for example, on Intel processors up to the 4th generation), you can use an adapter Microsoft Wireless Display Adapter or alternative programs from the following sections.

3. Method 2: Steam Link – for low-latency gamers

If you plan to broadcast games from computer to TV, standard Miracast may not be suitable due to high input lag (50–100 ms). The solution is a program. Steam Link, originally designed for streaming games from PC to Steam Deck or other devices. It uses its own video compression algorithms, which reduces lag to 10–30 ms with good Wi-Fi.

Setup instructions:

1. Install Steam to your computer (if not installed) and Steam Link on TV (available in Google Play For Android TV or through App Store on Apple TV).
2. Launch Steam on PC, go to Settings → Remote Play and turn on the option "Turn on streaming".
3. Open on your TV Steam Link, select your computer from the list and connect. You can use a gamepad for control (Xbox, PlayStation) or a keyboard connected to the TV.

Advantages Steam Link:

• 🎮 Optimized for gaming: controller support, adjustable stream quality, Big Screen mode.
• 🔧 Flexible settings: you can manually limit the bitrate (for example, up to 20 Mbps) to avoid lags on weak Wi-Fi.
• 🖥️ Multi-monitor support: only the game window is broadcast, not the entire desktop.

Flaws:

• 🚫 Requires installation Steam (even for non-game applications).
• 📶 Sensitive to network quality: at speeds below 15 Mbps the picture will "disintegrate" into squares.

4. Method 3: AirParrot – a universal solution for any device

If built-in Windows tools or Steam Link not suitable, pay attention to the program AirParrot 3. It supports broadcasting on Smart TV, Apple TV, Chromecast and even to other computers on the network. The main difference from Miracast — the ability to configure the quality of the stream and audio transmission separately from the video.

How to use AirParrot:

1. Download and install the program from official website (there is a 7-day trial version).
2. Launch AirParrot and select your TV from the list of available devices.
3. In the settings (Settings) please specify:
   • 🎵 Sound: Transmit Audio - Turn it on if you need sound on your TV.
   • 🖼️ Quality: Resolution — choose 1080p for Full HD or 4K (if supported).
   • 🔄 Delay: Low Latency Mode - Enable for games or video chats.

Click «Start Mirroring» to start the broadcast.

AirParrot paid (about $29.99 for a license), but offers features that are missing from free analogues:

⚠️ Attention: When using AirParrot on TVs LG With webOS You may need to install an additional application AirParrot Receiver from LG Content Store.

5. Method 4: Built-in Smart TV applications (Samsung, LG, Sony)

Manufacturers Smart TV often offer their own screencasting solutions. They are less versatile than Miracast or AirParrot, but can provide better compatibility with devices in their ecosystem.

Instructions for popular brands:

• 📱 Samsung (Smart View):
  1. On TV: Settings → General → External devices → Control device → turn on «Smart View».
  2. On PC: Install the application Samsung Smart View With official website.
  3. Connect to your TV via the app (you may need the PIN code from the TV screen).
• 🎯 LG (Screen Share):
  1. On TV: Settings → Network → Miracast/Screen Share → select «LG TV».
  2. On PC: Use the built-in Miracast (Win + K) or application LG TV Plus.

📺 Sony (Screen Mirroring):

1. On TV: Settings → Network → Screen Mirroring → turn on the mode "On".
2. On PC: Use Win + K or a program Sony Video & TV SideView.

Manufacturer's Features:

• 🔹 Samsung And LG Broadcasting from a PC is often blocked if unofficial Windows builds are installed on it (for example, ZverDVD). In this case, only a clean, licensed OS will help.
• 🔹 On TVs Sony older than 2019 may not have audio support when streaming via MiracastThe solution is to use AirParrot or Chromecast.

6. Method 5: Alternative solutions (Chromecast, RDP, DLNA)

If none of the above methods work, consider alternative options:

• 📲 Google Chromecast:

  The device connects to the TV's HDMI port and allows you to stream your screen through a browser. Google Chrome (option Broadcast in the menu). Suitable for watching videos, but not optimized for gaming (lag ~200 ms).

• 🖥️ Remote Desktop (RDP):

  If the TV is working on Android TV, you can install the client Microsoft Remote Desktop and connect to a PC. The downside is that only the image is transmitted; the sound will have to be output separately (for example, via Bluetooth-column).

• 📂 DLNA (for media files):

  If you only need to stream movies or music, use DLNA server (For example, Plex or Kodi). Set up a shared folder on your PC and open it on your TV via the app. Media Player.

Comparison of alternative methods:

Method	Delay	Sound support	Difficulty of setup
Chromecast	~200 ms	✅	Low
RDP	~50–100 ms	❌ (image only)	Average
DLNA	~1000 ms (not for interactive)	✅	Low

7. Typical problems and their solutions

Even with proper settings, streaming may still be unstable. Let's look at the most common errors and how to fix them:

• 🔴 The TV does not appear in the list of devices:

  Reasons:

  • The PC's Wi-Fi adapter does not support Miracast (check through dxdiag → tab "System" → line «Miracast»).
  • The TV is connected to another network (for example, to a router's guest network).
  • The TV mode is disabled Screen Mirroring.

  Solution: Restart your router and connect both devices to the same network. 5 GHz, update your TV firmware.

• 🟡 The image slows down or "disintegrates":

  Reasons:

  • Weak Wi-Fi signal (check the speed via speedtest.net - must be no less 10 Mbps).
  • Network congestion (for example, files are being downloaded to your PC at the same time).
  • Low video card performance (on integrated graphics) Intel HD there may be lags when 4K).

  Solution: Lower the broadcast resolution to 720p, disable background programs, connect the PC to the router with a cable.

• 🔇 No sound on TV:

  Reasons:

  • The wrong audio device is selected in Windows settings.
  • The TV does not support audio transmission through Miracast (relevant for older models Sony).
  • The audio card drivers are out of date.

Solution: Go to Settings → System → Sound and manually select the TV as the output device. If there is no sound, use AirParrot or Chromecast.

⚠️ Attention: On some TVs LG With webOS After updating the firmware, support may disappear MiracastIn this case, resetting the TV settings to factory settings will help (Settings → General → Reset).

8. Comparison of methods: which one to choose?

The choice of broadcast method depends on your goals:

For most users, the optimal solution would be:

1. For games: Steam Link (if any) Steam) or AirParrot in low latency mode.
2. For movies: Miracast (if TV supports) or Chromecast.
3. For presentations: Built-in tools Smart TV (For example, Samsung Smart View).

FAQ: Answers to Frequently Asked Questions

Is it possible to stream my screen to a TV without Wi-Fi?

Yes, but this will require either an HDMI cable or special adapters (for example, USB-C to HDMI (for modern laptops). Wireless alternatives to Wi-Fi:

• 📡 Bluetooth: Suitable only for transmitting sound, images cannot be transmitted.
• 📶 Mobile hotspot: You can create an access point on your phone and connect your PC and TV to it, but the speed will be lower than with a router.
• 🔌 Powerline adapters: Transmission of a signal through electrical wiring (eg. TP-Link AV600). The speed is comparable to Wi-Fi, but without interference.

Why is there no sound on the TV when streaming via Miracast?

This is a common issue with older versions of Windows 10 or drivers. Try:

1. Update your audio card drivers via device Manager.
2. IN Settings → System → Sound Manually select TV as the output device.
3. If the sound still does not appear, use alternative methods (AirParrot or Chromecast).

On some TVs Sony sound through Miracast not transmitted by default - this is a manufacturer limitation.

How to reduce lag when streaming games?

Latency depends on the broadcast method and network quality. To reduce lag:

• 📶 Use a router with support Wi-Fi 6 (standard 802.11ax) or connect your PC to it with a cable.
• 🔧 In the settings Steam Link or AirParrot select mode Low Latency (Low Latency).
• 🖥️ Lower the game resolution to 720p or 900p.
• 🚫 Close background programs that consume traffic (torrents, updates, cloud storage).

Minimum delay (~10–20 ms) is achieved by using Steam Link with a wired connection of the PC to the router.

Is it possible to stream a screen from a PC to a TV via the Internet (not a local network)?

Technically yes, but with serious limitations:

• 🌍 Via cloud services: Programs like Parsec or Rainway allow you to broadcast your screen over the Internet, but require a high-speed connection (from 25 Mbps) and have a delay of ~50–100 ms.
• 🔗 Via RDP: You can set up remote access to your PC via Chrome Remote Desktop or TeamViewer, but the quality will be worse than on a local network.

For stable operation it is recommended to use local network only (Wi-Fi or Ethernet).

How to stream only audio from PC to TV?

If you only need to transmit audio (for example, to listen to music through TV speakers), use:

• 🔊 Bluetooth: Connect your TV as follows Bluetooth device in Windows settings (Settings → Devices → Bluetooth).
• 📶 DLNA: Install a server program on your PC (for example, Foobar2000 with plugin UPnP) and play music through the app Media Player on TV.
• 🔌 HDMI-ARC: If your PC is connected to your TV via HDMI, enable the function. ARC (Audio Return Channel) in the TV settings.