How to Connect Windows 10 to a TV via Wi-Fi: A Complete Guide with Solutions for All TV Models

Wirelessly stream your computer screen to your TV via Wi-Fi—a convenient way to display movies, games, or presentations on the big screen without the hassle of wires. Windows 10 There are several built-in technologies for this: Miracast, DLNA and specialized applications like Steam LinkHowever, not all TVs support these standards equally, and setup is often accompanied by errors such as "Device does not support Miracast" or "No displays available."

In this article we will look at all current connection methods From standard Windows features to bypassing limitations on older TV models, you'll learn how to check hardware compatibility, configure your network for minimal latency, and choose the optimal method depending on your needs: watching videos, streaming games, or mirroring your desktop. We'll focus on solutions for popular brands. Samsung, LG, Sony And Xiaomi, where connection algorithms may differ.

If you have previously tried to connect and received an error, there is an answer at the end of the article. section with answers to frequently asked questions — from no sound to connection drops. And for those seeking maximum stability, we've compared the pros and cons of Wi-Fi and alternative methods (HDMI, Wi-Fi Direct, adapters).

1. Check compatibility: Does your TV support wireless connection?

Before you try to connect Windows 10 and TV via Wi-Fi, make sure both devices support the selected protocol. Key technologies and their requirements:

• 🔹 Miracast — a built-in Windows standard for screen mirroring. Requires TV support (usually available on models 2013 and newer) and the computer's Wi-Fi adapter (most modern laptops support it).
• 📺 DLNA/UPnP — a protocol for streaming media files (video, photos, music). Works on almost all Smart TVs, but does not allow you to duplicate the entire screen - only play files.
• 🎮 Steam Link — a solution for gamers that streams games from a PC to a TV. Requires app installation. Steam on both devices.
• 🔌 Wi-Fi Direct — an alternative to Miracast, but less common. Used in some models. Samsung And LG.

To check support Miracast on the computer:

1. Click Win + R, enter dxdiag and press Enter.
2. In the window DirectX Diagnostic Tools go to the tab Save all data.
3. Find the line Miracast: Available. If it is written Not supported, your Wi-Fi adapter is not suitable.

To check your TV:

• 📱 On the remote control Samsung go to Settings → General → External Devices → Wireless Display.
• 📱 On LG open Settings → Network → Miracast/Wi-Fi Direct.
• 📱 On Sony Bravia check the section Settings → Network → Home Network → Wireless Display.

⚠️ Attention: Some budget TV models (for example, Xiaomi Mi TV 4A or TCL 3-series) support Miracast only through third-party applications like ApowerMirror or LetsViewThe official function may not be available in the menu.

2. Connecting via Miracast: Step-by-step instructions

Miracast — the most versatile screen mirroring method, but it requires precise setup. Follow these instructions:

1. Activate Miracast on your TV:
   • On Samsung: Settings → General → External devices → Wireless display → Enable.
   • On LG: Settings → Network → Miracast → Enable.
   • On Sony: Settings → Network → Wireless Display → Standby.

On the computer: click Win + K (or open Settings → System → Project to this PC).

Select your TV from the list of available devices. If it's not there, update your Wi-Fi adapter drivers (see section with errors).

Confirm the connection on TV (you may be asked to enter a PIN code).

Once successfully connected, you will be able to select the display mode:

• 🔄 Duplicate — the PC and TV screens are the same.
• 🖥️ Expand — TV becomes a second monitor.
• 📺 Second screen only — image only on TV.

Make sure your TV and PC are on the same Wi-Fi network|Update your graphics card and Wi-Fi drivers|Disable your VPN and firewall|Check Miracast support via dxdiag-->

If the connection is interrupted or the image lags:

• 📶 Switch to range 5 GHz in the router settings (less interference).
• 🔌 Connect your computer to the router with an Ethernet cable, and leave the TV on Wi-Fi.
• 🖥️ Reduce your screen resolution in Settings → System → Display to 1920×1080.

⚠️ Note: On some laptops with hybrid graphics (e.g. NVIDIA Optimus) Miracast may not work. In this case, try disabling the discrete graphics card in Device Manager or use the alternative methods from the following sections.

3. Miracast Alternatives: DLNA and Dedicated Apps

If your TV doesn't support Miracast or your connection is unstable, try other methods:

DLNA setup:

1. Install a media server on your PC (for example, Plex or Kodi).
2. Add movie/music folders to the server library.
3. On your TV, open the app Media player or DLNA and select your PC from the list of devices.

Setting up Steam Link:

1. Install Steam on PC and TV (via Google Play or App Store for Smart TV).
2. On your PC, turn on Settings → Remote Play → Enable Remote Play.
3. Launch it on TV Steam Link, pair with your PC and select a game.

4. Troubleshooting: Why isn't the connection working?

If your TV does not appear in the list of devices or the connection drops, check the following:

• 🔌 Network settings:
  • PC and TV must be in one Wi-Fi network (do not use the router's guest mode).
  • Turn it off VPN And Windows Firewall (temporarily).
  • Make sure your router isn't blocking multicast traffic (needed for Miracast).
• 🖥️ Drivers:
  • Update your Wi-Fi adapter driver via device Manager.
  • For video cards Intel install the latest version Intel Graphics Command Center.
• 📺 TV settings:
  • On Samsung may need to be disabled Energy saving in the network settings.
  • On LG check that the mode is enabled Screen Share (and not only Miracast).

Common mistakes and their solutions:

What to do if Miracast doesn't work at all?

If your PC or TV does not support Miracast, use alternative solutions:

1. Google Chromecast - connect the device to the HDMI port of the TV and broadcast the screen through the Chrome browser (Broadcast → Broadcast Desktop).

2. ApowerMirror/LetsView — Installing the application on both devices allows you to bypass Miracast limitations.

3. HDMI cable — if you need minimal lag (for example, for gaming), a physical connection remains the most reliable option.

5. Connection optimization: how to reduce latency and improve quality?

Even if the connection is established, streaming quality can deteriorate due to network issues. The following tips will help ensure a stable picture:

• 📶 Router settings:
  • Switch to range 5 GHz (less interference from other devices).
  • Turn on QoS (Quality of Service) and set the priority for traffic from the PC.
  • Turn it off WMM (Wi-Fi Multimedia), if you experience any freezes.
• 🖥️ Windows settings:
  • Reduce your screen resolution to 1920×1080 (V Settings → System → Display).
  • Turn it off Hardware acceleration in the browser (if you are streaming via Chrome).
  • Close background programs that consume internet (Torrent, cloud synchronization).
• 📺 TV settings:
  • Turn it off Image processing (For example, Motion Plus on Samsung).
  • Set the mode Game (Game Mode) if you are streaming games.

Network speed test:

For stable broadcasting 1080p a speed of at least is required 10 Mbps, For 4K — from 25 MbpsCheck the speed between your PC and TV:

1. On your PC, open Command line (Win + R → cmd).
2. Enter the command:

   ping [TV IP address] -n 20

   (The IP can be found in the TV network settings).

3. If the ping is higher 50 ms or there is packet loss, the problem is in the network.

6. Connecting to TVs of different brands: features

Connection algorithms may vary depending on the TV manufacturer. Below are instructions for popular brands:

Samsung (QLED, Crystal UHD, The Frame series)

• 🔧 Use the built-in app Smart View or Screen Mirroring.
• 🔄 If Miracast isn't working, try Wi-Fi Direct in the network settings.
• ⚠️ On models 2018 and older A firmware update may be required.

LG (OLED, NanoCell, QNED series)

• 📱 Turn on Screen Share V Settings → Network → Miracast.
• 🎮 Use for games LG Game Optimizer + Steam Link.
• 🔌 On older models (before 2016) there may not be Miracast support - use ApowerMirror.

Sony Bravia (X90J, A80J, X85J series)

• 📺 Activate Wireless display V Settings → Network → Home Network.
• 🔊 To transmit audio, select Digital output (HDMI ARC) in the TV sound settings.
• 🔄 On models with Android TV can be used Google Cast instead of Miracast.

Xiaomi Mi TV (series 4A, 4S, 5)

• 📱 Install the application Miracast from Mi App Store.
• 🔧 Turn on Safe mode in the Wi-Fi settings if the connection is interrupted.
• ⚠️ On Mi TV 4A (budget model) Miracast only works with smartphones - for PCs you need an adapter.

⚠️ Warning: On TVs Philips And TCL with the system Android TV There may be no built-in Miracast support. In this case, use Google Cast or third-party applications like AirScreen.

7. Comparison of methods: which one to choose for your task?

The connection method you choose depends on what you need the broadcast for:

Equipment recommendations:

• 📶 For Miracast: a router with support 802.11ac (For example, TP-Link Archer C6 or ASUS RT-AX55).
• 🖥️ For gaming: PC with a graphics card NVIDIA GTX 10xx or newer + router with QoS.
• 📺 For 4K: TV with HEVC (H.265) and PC with Intel Quick Sync or NVIDIA NVENC.

FAQ: Answers to Frequently Asked Questions

🔍 Why isn't my TV visible in the list of devices when connected via Win + K?

There are several reasons:

• 🔌 The PC and TV are not on the same Wi-Fi network (check the network name on both devices).
• 🖥️ Your Wi-Fi adapter driver is out of date (update via device Manager).
• 📺 It's not turned on on the TV Screen Mirroring or Wi-Fi Direct.
• 🛑 Your firewall or antivirus is blocking the connection (temporarily disable them).

If nothing helps, try connecting via ApowerMirror or check Miracast support in dxdiag.

🎮 Is it possible to play via Miracast without lag?

Technically yes, but with some caveats:

• 📶 Use a router with 5 GHz and the channel 149–165 (less interference).
• 🖥️ Reduce the game resolution to 1280×720 and turn off vertical sync.
• 🔌 Connect your PC to the router with a cable, and leave the TV on Wi-Fi.

For serious gaming it is better to use Steam Link or a wired connection (HDMI). Lag via Miracast is usually 50–100 ms, which is critical for shooters.

🔊 There's no sound when connected to a TV. How do I fix it?

The problem most often lies in Windows sound settings:

1. Right-click on the sound icon in the tray → Open sound settings.
2. In the section Conclusion select your TV (for example, Samsung-XX:XX).
3. If the device is not displayed, click Troubleshoot sound issues.

If the sound still does not appear:

• 🔧 Update your sound card driver.
• 📺 On your TV, make sure the correct audio source is selected (HDMI or TV Speaker).

📺 Is it possible to connect Windows 10 to a TV without a Smart TV?

Yes, there are several ways:

1. Miracast adapter: devices like Microsoft Wireless Display Adapter or AnyCast connect to the HDMI port and create an access point for broadcasting.
2. Google Chromecast: Connect to HDMI and cast your screen through the Chrome browser (Broadcast → Broadcast Desktop).
3. HDMI cable: the most reliable option for old TVs.

The cost of adapters is from 1 500 ₽ (For example, Xiaomi Mi TV Stick with Miracast support).

🔄 How do I disable image lag when watching videos?

Lag when streaming video over Wi-Fi is usually caused by:

• 📶 Network: switch to 5 GHz, disconnect other devices from the router.
• 🖥️ Codecs: use formats H.264 or H.265 (Not MPEG-2).
• 📺 TV settings: disable post processing (Motion Smoothing, Noise Reduction).

For minimal delay:

• Use DLNA instead of Miracast (if you only need video).
• Reduce video bitrate to 5 Mbps (for example, in HandBrake).