How to Connect a Smart TV to a Computer via Wi-Fi: 4 Proven Methods

No wires, no limits: transfer images from your computer to a big TV screen Wi-Fi Opens up new possibilities for work, gaming, and content viewing. But how do you properly set up such a connection to avoid lags, connection drops, and compatibility issues? This guide will help you choose the optimal method depending on your needs—whether it's streaming movies in 4K, launching games through Steam Link or demonstration of presentations.

Many users encounter common errors: the TV can't find the computer on the network, the picture lags, the sound disappears, or there are resolution issues. The causes lie in router settings, protocol incompatibility, or an incorrectly selected transmission method. We'll cover all the nuances, from checking network parameters before fine-tuning Miracast And DLNAso that you get a stable connection without loss of quality.

Modern Smart TV from Samsung, LG, Sony or Xiaomi support several wireless data transfer protocols, but their implementation may differ even within the same brand. For example, televisions LG With webOS work better with Steam Link, and models Samsung on Tizen - With Miracast via the built-in function Screen MirroringIt is also important to consider the capabilities of your computer: not all laptops support Miracast at the hardware level, and for DLNA Installation of additional software may be required.

1. Network Preparation: Why Stable Wi-Fi Is Important for PC and TV Connections

Before setting up a connection, make sure that your Wi-Fi network meets the minimum requirements. For video transmission in resolution Full HD or 4K without delays, a speed of at least is required 25 Mbps For 1080p And 50 Mbps For 2160pIf the router operates in the standard 802.11n (Wi-Fi 4), the maximum speed rarely exceeds 150 Mbps, which may not be enough for comfortable streaming.

Optimal router settings for PC and TV connection:

• 📶 Range: use 5 GHz - it is less congested and provides greater throughput. At the frequency 2.4 GHz Interference from neighboring networks is possible.
• 🔒 Encryption: install WPA3 (or WPA2-PSK for older devices). Open networks or WEP are unsafe and may slow down transmission.
• 📡 Channel: manually select the least loaded channel in the router settings (for example, 36, 40, 44 or 48 For 5 GHz).
• 🔄 QoS: turn on Quality of Service and set the priority for traffic between the PC and TV (if the router supports it).

If your router does not support 5 GHz or gives a weak signal, consider using Mesh systems or Wi-Fi repeater. An alternative is to connect the TV to the router via cable (Ethernet), and the computer - via Wi-Fi (or vice versa). This will reduce the load on the wireless network.

⚠️ Attention: If you have a dual-band router, make sure both your PC and TV are connected to the the same network (2.4 GHz or 5 GHz). Different ranges may create problems with detecting devices.

2. Method 1: Miracast - wireless screen mirroring without programs

Miracast — is a wireless image transmission standard built into Windows 10/11 and most modern ones Smart TVIt allows duplicate screen computer to TV without additional cables or programs. The main advantage is minimal delays (about 30-50 ms), which is critical for games or presentations.

To activate Miracast:

1. Turn on the function on your TV Screen Mirroring (at Samsung), Wireless Display (at LG) or Miracast (at Sony/Xiaomi). It is usually located in the menu. Settings → Connections → Display.
2. On your computer, click Win + K (or open Settings → System → Display → Connect to a wireless display).
3. Select your TV from the list of available devices.

If your TV does not appear in the list, check:

• 🔌 Compatibility: Not all video cards support it MiracastFor example, old models Intel HD Graphics (up to 4th generation) or some discrete cards NVIDIA may not work. Check support via dxdiag (enter the command in Execute).
• 🔄 Updates: Install the latest drivers for your video card and TV firmware.
• 📶 Signal: Make sure both devices are connected to the same network 5 GHz.

Update graphics card drivers on your PC

Enable Screen Mirroring on TV

Connect both devices to the 5 GHz network

Disable VPN/proxy on PC

Reboot your router-->

⚠️ Attention: When using Miracast The sound is sent to the TV by default. If it doesn't play, check the sound settings in Windows: Settings → System → Sound → Output Device.

3. Method 2: DLNA – streaming media files without screen mirroring

DLNA (Digital Living Network Alliance) is a protocol for transmitting media files (video, music, photos) over a local network. Unlike MiracastIt doesn't duplicate the screen, but only broadcasts selected content. This is convenient for watching movies or listening to music without straining the PC's processor.

For setup DLNA on the computer:

• 🖥️ Windows: turn on Media streaming V Control Panel → Network and Internet → Network and Sharing Center → Advanced settings.
• 🐧 Linux: install MiniDLNA or Rygel via terminal:

  sudo apt install minidlna

• 🍎 MacOS: use Plex Media Server or Kodi.

On TV:

1. Open the app Media player, SmartShare (at LG) or AllShare (at Samsung).
2. Select your computer from the list DLNA servers.
3. Find the file you need and start playback.

DLNA does not support streaming DRM-protected files (such as videos from Netflix or Disney+), nor does it stream Dolby Atmos audio without additional codecs.

4. Method 3: Steam Link – Play PC games on TV without a console

If you want to play Steam- games on the big screen, Steam Link — the optimal solution. This method ensures minimal delays (10-20 ms) and supports resolution up to 4K/60To work you will need:

• Computer with installed Steam and the function enabled Remote Play.
• TV with support Steam Link (or prefix NVIDIA Shield, Raspberry Pi with the application installed).
• Gamepad connected to TV via Bluetooth or USB.

Step-by-step setup:

1. On your PC, open Steam, go to Settings → Remote Play and turn on the option Enable Remote Play.
2. Install the app on your TV Steam Link (available in LG Content Store, Samsung App Store or Google Play For Android TV).
3. Connect the gamepad to the TV and launch it. Steam LinkThe application will automatically find your PC on the local network.
4. Select a game from your library and start streaming.

To reduce delays:

• 🎮 Use a wired connection from your PC to the router (Ethernet).
• 📊 In the settings Steam Link select Speed ​​priority instead of Quality Priority.
• 🔧 Disable background programs on your PC that consume network bandwidth (torrents, cloud syncs).

5. Method 4: AirPlay for Apple device owners

AirPlay — proprietary protocol from Apple, allowing you to broadcast your screen Mac or iPhone on Apple TV or compatible Smart TV (for example, models Samsung 2018 and newer, LG With webOS 4.0+). For Windows you will need to install additional software, for example, 5KPlayer or ApowerMirror.

How to enable AirPlay on TV:

• On Samsung: Settings → General → Apple AirPlay → enable the option.
• On LG: Settings → Networks → AirPlay → select On
• On Sony (With Android TV): install the application AirScreen from Google Play.

To broadcast from Mac:

1. Make sure that Mac and TV are connected to the same Wi-Fi network.
2. Click on the icon Screen control in the menu bar (or System Preferences → Displays).
3. Select your TV from the list AirPlay displays.
4. Specify the mode: Duplicate (for presentations) or Expand (to use TV as a second monitor).

⚠️ Attention: When using AirPlay through third-party programs on Windows Delays may occur up to 200-300 msFor games or videos this is critical - it is better to use Miracast or Steam Link.

6. Troubleshooting: Why the TV doesn't see the computer or the video lags

If the connection is not established or is not working correctly, check the following:

Problem 1: The TV does not appear in the list of available devices.

• 🔌 Make sure both devices are connected to one Wi-Fi network (not to a guest or other access point).
• 🔄 Reboot the router and both devices.
• 🛠️ Update your TV firmware and network/video card drivers on your PC.
• 🔍 Check if your graphics card supports it Miracast (through dxdiag or the manufacturer's website).

Problem 2: Video stutters or cuts off

• 📶 Check your Wi-Fi speed with Speedtest on both devices. If the speed is lower 20 Mbps, reduce the broadcast resolution.
• 🔌 Connect one of the devices (PC or TV) to the router via cable (Ethernet).
• 🎛️ Disable it in your router settings Band Steering (if enabled) - it can force switching devices between 2.4 GHz And 5 GHz.
• 🛑 Close programs that consume traffic (torrents, online games, cloud backups).

Problem 3: No sound during broadcast

• 🔈 On your PC, check if your TV is selected as the audio output device (Settings → System → Sound).
• 🎵 Make sure your TV supports the audio format (e.g. Dolby Digital may not play through Miracast).
• 🔌 Reconnect your devices or change the streaming method (for example, with Miracast on DLNA).

What should I do if the picture on my TV lags behind the sound?

If you experience audio and video out of sync (audio delay), try:

1. Reduce the broadcast resolution (for example, from 4K to 1080p).

2. Enable "Low latency" mode in the application settings (if available).

3. Use an external sound system (for example, connect speakers to the TV via HDMI ARC).

4. Switch to a wired connection (Ethernet) for one of the devices.

7. Alternative Solutions: When Wi-Fi Isn't Enough

If your wireless connection is unstable or you require maximum quality, consider alternatives:

• 🔌 HDMI cable: the most reliable solution for 4K/120Hz or 8KSuitable for desktop PCs next to a TV.
• 📡 Wi-Fi Direct: Direct connection between a PC and TV without a router. Not supported by all models.
• 🖥️ Google Chromecast / Amazon Fire Stick: streaming boxes with support Miracast And DLNA.
• 🎮 NVIDIA Shield: optimized for Steam Link And GeForce NOW.

For professional use (for example, conferences or streaming) it is better to use specialized solutions:

• Elgato 4K60 Pro — capture video from a PC and transmit it to TV without loss of quality.
• OBS Studio + RTMP server — for broadcasting with minimal latency over a local network.

FAQ: Frequently asked questions about connecting a Smart TV to a PC

Can I connect my TV to my PC via Wi-Fi if I don't have a Smart TV?

Yes, but you will need an additional device:

• 📺 Android TV set-top box (For example, Xiaomi Mi Box or NVIDIA Shield) with support Miracast or DLNA.
• 🔌 Google Chromecast or Amazon Fire TV Stick - they allow you to broadcast your screen through Miracast or apps like Steam Link.
• 🖥️ Mini-PC (For example, Raspberry Pi With LibreELEC) - can be configured as DLNA server or Miracast receiver.

Budget option: connect your old smartphone to your TV via HDMI (through MHL adapter) and broadcast your PC screen to it via Miracast or TeamViewer.

How to reduce lag when streaming games over Wi-Fi?

Latency depends on your connection method and network settings. To reduce it:

• 🎮 Use Steam Link instead of Miracast — there will be a delay 10-20 ms against 30-50 ms.
• 📶 Switch to the network 5 GHz or use Wi-Fi 6 (802.11ax).
• 🔌 Connect your PC to the router via cable (Ethernet), and leave the TV on Wi-Fi.
• 🛠️ Enable it in your router settings QoS and set maximum priority for traffic between PC and TV.
• 🖥️ Close background processes on your PC (especially torrents and cloud syncs).

For competitive games (eg. CS2 or Valorant) it is better to use wired connection or specialized devices like Moonlight (For NVIDIA GPU).

Why does the picture lag when connecting via Miracast, but the sound is fine?

This is a typical problem when:

• 📶 Weak Wi-Fi signal: Check the signal level on your PC and TV. If it's lower 70%, move the router closer or use repeater.
• 🖥️ Lack of PC resources: Miracast Requires real-time video encoding. Close heavy programs or reduce your screen resolution.
• 🔧 Suboptimal router settings: turn off Band Steering and set a fixed channel in the range 5 GHz (For example, 36 or 48).
• 🔄 Codec conflict: Update your video card drivers and TV firmware.

Try reducing the broadcast resolution to 1280×720 or use DLNA to play files instead of mirroring the screen.

Is it possible to stream Netflix or Disney+ from PC to TV via Wi-Fi?

Yes, but with some reservations:

• 🎬 Miracast/DLNA: will not work because these services use DRM protection (Widevine). When mirroring your screen, the video won't play or will show a black screen.
• 🖥️ Steam Link: It can stream from a browser with Netflix open, but the quality will be limited. 1080p (due to DRM).
• 📺 Best option: install the application Netflix or Disney+ directly on Smart TV and log in to your account.

Alternative: Connect your PC to your TV via HDMI and use the TV as a monitor.

How to connect a MacBook to a Smart TV without Apple TV?

If you don't have Apple TV, use one of the methods:

• 🖥️ AirPlay on a compatible TV: many models Samsung, LG And Sony support AirPlay 2. Enable the feature in your TV settings and broadcast your screen from MacBook through Screen control.
• 🔄 Miracast via adapter: buy USB-C/HDMI adapter with support DisplayPort Alt Mode (for example, from Anker or Belkin) and connect MacBook to TV via cable.
• 📱 Intermediary applications: install on TV ApowerMirror or AirServer (paid), and on MacBook — client software.

Suitable for streaming media files (not screen mirroring) Plex Media Server or Kodi with support DLNA.