Wirelessly streaming your laptop's screen to your TV via Wi-Fi is a convenient way to show a presentation, watch a movie on the big screen, or play games wirelessly. However, not everyone knows that this doesn't require purchasing additional adapters or running HDMI cables around the room. Modern TVs and laptops support several wireless transmission protocols, but setting them up often raises questions: why is there no sound, why is the picture lagging, or why isn't the TV detecting the laptop at all?
In this article we will look at all current connection methods — from built-in functions Windows And macOS to third-party applications like Steam Link or ApowerMirrorYou will learn which method is best for your needs. Samsung QLED, LG OLED or TV on Android TV, as well as how to resolve common issues with image lag or connection interruptions. We'll pay special attention to hidden router settings that can block broadcasting even when devices are connected correctly.
1. Preparation: What to check before connecting
Before attempting to connect your laptop and TV, make sure both devices meet the minimum requirements. This will save you an hour of troubleshooting why nothing is working.
TV requirements:
- 📺 Smart TV at the base Android TV, webOS (LG), Tizen (Samsung) or Roku TV. Older models with proprietary OS (eg. Philips NetTV 2015) may not support modern protocols.
- 🔄 Support Miracast (for Windows) or AirPlay (for Apple). You can check this in the TV menu:
Settings → Network → Screen MirroringorScreen Mirroring. - 📶 Connect to the same Wi-Fi network as your laptop. If the TV is connected via cable and the laptop via Wi-Fi, streaming won't work.
Laptop requirements:
- 🖥️ Windows 10/11 (for Miracast) or macOS Monterey and newer (for AirPlay). On Windows 7/8 you will have to use third-party programs.
- 🔧 Video card with support Wi-Fi Direct (most models after 2015). You can check through
Device Manager → Network Adapters— look for a mention Wireless Display or Miracast. - 🔋 The battery charge must be at least 30%. When the battery is low, the system may automatically disable power-consuming functions, including streaming.
⚠️ Note: If your TV is connected to Wi-Fi via guest network router, and the laptop is connected to the main one, the broadcast will not work. Some routers (for example, ASUS RT-AX88U) block communication between devices on different subnets even with the same SSID.
| Device | Minimum OS/PO version | Supported protocols |
|---|---|---|
| Samsung QLED (2018–2026) | Tizen 4.0+ | Miracast, AirPlay 2, DLNA |
| LG OLED (2019–2026) | webOS 4.5+ | Miracast, AirPlay 2, Google Cast |
| Sony Bravia (Android TV) | Android 9+ | Miracast, Google Cast, AirPlay (2021+ models) |
| Laptop with Windows | Windows 10 (1803+) / 11 | Miracast, WiDi (deprecated) |
| Laptop with macOS | Monterey 12.0+ | AirPlay, Google Cast (via browser) |
2. Method 1: Miracast (for Windows and Android TV)
Miracast — built-in protocol in Windows, which allows you to mirror your screen without additional software. It works on most modern TVs and laptops, but has limitations: maximum resolution 1920×1080 at 30 Hz (on some models - 60 Hz), as well as possible delays of up to 100 ms, which is critical for games.
To connect:
- On your TV, activate the Miracast receiving mode. Samsung This
Settings → General → Screen Mirroring, on LG —Screen Share. - On a laptop, press
Win + K(or openSettings → System → Display → Connect to a wireless display). - Select your TV from the list. If it's not there, update your video card drivers (especially important for Intel UHD Graphics).
If the connection is interrupted or the image is slow:
- 🔄 Restart your router - sometimes Wi-Fi channels are overloaded with interference from neighbors.
- 📶 Switch your router to a different range
5 GHz(in settings192.168.1.1or192.168.0.1). Miracast doesn't work well on2.4 GHzdue to interference. - 🖥️ In Windows open
Settings → System → Display → Graphicsand set Miracast priorityMaximum performance.
⚠️ Note: On some laptops with hybrid graphics (NVIDIA Optimus or AMD SmartShift) Miracast may automatically use the integrated graphics card, which causes lag. To force the use of the discrete GPU, open the graphics card control panel and add SystemSettings.exe to the list of programs with processor selection.
TV and laptop on the same Wi-Fi network|
Screen Mirroring is enabled on the TV|
The laptop's Wi-Fi and GPU drivers have been updated|
The router operates in the 5 GHz range-->
3. Method 2: AirPlay (for Apple and compatible TVs)
AirPlay — proprietary protocol from Apple, which provides minimal delays (up to 30 ms) and support 4K HDRIt works out of the box on MacBook, iPhone and TVs with support AirPlay 2 (For example, LG OLED C2, Samsung QN90C, Sony X90K). On Windows AirPlay requires a program 5KPlayer or ApowerMirror.
Instructions for macOS:
- Make sure your TV and Mac are connected to the same Wi-Fi network.
- Activate AirPlay on your TV: LG This
Settings → General → Apple AirPlay, on Samsung —Settings → General → Apple AirPlay and HomeKit. - On Mac, open
Control Center → Screen Mirroringand select your TV.
If AirPlay isn't working:
- 🔒 Check if the broadcast is blocked firewall (on Mac:
System Preferences → Security & Privacy → Firewall). - 🔄 Restart your TV - sometimes AirPlay freezes after being idle for a long time.
- 📱 If you are connecting with iPhone, make sure that in
Settings → Wi-Fioption disabledPrivate address(it may interfere with device detection).
How to enable AirPlay on TVs without official support?
If your TV does not support AirPlay 2 but does work on Android TV, you can install the application AirScreen or ApowerMirror from Google Play. These programs emulate AirPlay support, but can introduce a latency of up to 200 ms. To install:
1. Open Settings → Security and allow installation from unknown sources.
2. Download the APK from the official website (not from third-party stores!).
3. Launch the application and follow the on-screen instructions.
4. Method 3: Google Cast (for Chrome and Android TV)
Google Cast (aka Chromecast) is a universal protocol for broadcasting content from a browser. Chrome or applications like YouTube, NetflixUnlike Miracast, it doesn't transmit the entire screen, but only a browser tab or media file, which reduces network load. Suitable for TVs with Android TV and devices Chromecast.
How to cast your screen using Chrome:
- Open your browser Google Chrome on a laptop.
- Click on the three dots in the upper right corner →
Broadcast. - Select
Broadcast taborStream file(for local videos). - Select your TV from the list of devices.
Limitations and solutions:
- 🎵 No sound? In Chrome, go to
Settings → Privacy → Content settings → Soundand allow playback for the site. - 🖥️ Lag when streaming a tab? Close all other tabs—Chrome is a resource hog. Alternatively, stream just the media file instead of the entire screen.
- 🔒 Can't see the TV? Make sure it is enabled in your router settings.
Multicast(IGMP). On TP-Link ThisAdvanced Settings → IGMP Proxy.
5. Method 4: Steam Link (for gamers)
If you want to play on your TV with minimal lag, Steam Link — one of the best options. This technology from Valve Optimized for streaming games from PC to TV, supports resolutions up to 4K@60fps and works even on weak laptops (provided you have a powerful main PC).
What you will need:
- 💻 Main PC with installed Steam and the game.
- 📺 TV with Steam Link (the application is available for Android TV, Samsung Tizen 2020+ and LG webOS 5.0+).
- 🎮 A gamepad connected to a TV (or laptop, if you play with a keyboard).
Setting:
- On your PC, open Steam, go to
Settings → Loginand turn it onSteam Guard(Necessarily!). - Install the application Steam Link to the TV from the app store.
- Launch the app on your TV, select your PC from the list and enter the PIN code that appears on the PC screen.
- In Steam Link settings, set
Quality → Customand select a bitrate no higher than 20 Mbps (otherwise there will be lags).
⚠️ Attention: For stable operation Steam Link It is recommended to connect the PC to the router via network cable, and leave the TV on Wi-Fi. This will reduce latency to 10-15 ms. If you play shooters or fighting games, also disable the Steam Link option in the settings. Optimize for video - it adds buffering.
| Protocol | Delay | Max. permission | Suitable for |
|---|---|---|---|
| Miracast | 50–100 ms | 1080p@30fps | Films, presentations |
| AirPlay | 30–50 ms | 4K@60fps | Video, music, screencasting |
| Google Cast | 100–200 ms | 4K@30fps | YouTube, Netflix, Chrome tabs |
| Steam Link | 10–30 ms | 4K@60fps | Gaming, desktop streaming |
6. Method 5: DLNA and third-party applications
If your TV does not support Miracast or AirPlay, you can use the protocol DLNA or third-party programs like ApowerMirror, TeamViewer or AnyDeskThese methods are less stable, but work even on older devices.
DLNA It's designed for transferring media files (photos, videos, music), but not the entire screen. To use it:
- Install a server program on your laptop, for example, Serviio or Plex.
- Add folders with files to the program library.
- On your TV, open the app
Media playerorDLNA browserand select your laptop from the list of devices.
Third-party applications (For example, ApowerMirror):
- 📱 Install the program on your laptop and TV (if on Android TV).
- 🔗 Connect both devices to the same Wi-Fi network.
- 🖥️ On your laptop, start the broadcast through the program interface.
Disadvantages of these methods:
- 🐢 Latency up to 300ms (not suitable for gaming).
- 🔒 Some programs require payment for features like sound or 4K.
- 🛡️ Risk of installing malware when downloading from unofficial sources.
7. Troubleshooting: Why the broadcast isn't working
If your TV can't detect your laptop or the stream keeps dropping out, the cause could be either device settings or network configuration. Here are the most common issues and their solutions:
Problem 1: TV does not appear in the list of devices
- 🔌 Check that both devices are connected to one Wi-Fi network (not to the guest and not to different ranges
2.4/5 GHz). - 🔄 Reboot your router—sometimes the DHCP server "forgets" to assign local IP addresses.
- 🖥️ On a laptop with Windows open
Settings → Network → Wi-Fi → Manage known networks, select your network and pressForget. Then reconnect.
Problem 2: The image is slow or choppy
- 📶 Switch your router to a different range
5 GHzand set a fixed channel (eg36or149) instead ofAuto. - 🔌 Connect your laptop or TV to the router via cable (at least one device).
- 🖥️ In Windows open
Settings → System → Display → Graphicsand turn it offGPU hardware accelerationfor Miracast.
Problem 3: No sound during broadcast
- 🔊 On a laptop with Windows click
Win + X → Device Manager → Sound, video and game controllersIf there is a device with the nameMiracast Audio, update its driver. - 🎵 In the broadcast settings (for example, in Steam Link) select
Transfer audio to the device. - 🔕 Check that the sound on your TV isn't muted.
Settings → Sound → HDMI/ARC Output.
⚠️ Attention: On some routers (for example, Keenetic or MikroTik) the protocol is disabled by default mDNS, which is needed to discover Miracast/AirPlay devices. To enable it, go to the router's control panel and find the settingBonjourorMulticast DNS.
8. FAQ: Answers to frequently asked questions
Is it possible to mirror a laptop's screen to a TV without Wi-Fi?
Yes, but this will require HDMI cable or Wi-Fi Direct adapter (For example, Microsoft Wireless Display AdapterWi-Fi Direct creates a direct network between devices without a router, but only works over short distances (up to 5 meters). The quality will be worse than regular Wi-Fi due to interference.
Why is there no sound on the TV when streaming via Miracast?
This is a typical problem. Windows, related to sound drivers. Solutions:
- Update your sound card driver via
device Manager. - IN
Settings → System → Soundselect as output deviceMiracast AudioorNo sound, then turn the sound back on. - If you use Realtek Audio, download the driver from the official website (not via Windows Update).
How to mirror a laptop's screen to a Samsung TV via Wi-Fi?
On TVs Samsung With Tizen (2016 and newer) use Smart View:
- On TV:
Settings → General → Screen Mirroring. - On a laptop with Windows:
Win + K → Select TV. - If it doesn't work, install the program Samsung Smart View from the official website.
Models older than 2016 may require AllShare Cast Dongle (check compatibility on Samsung website).
What is the latency when streaming over Wi-Fi?
Depends on the protocol:
- Miracast: 50–100 ms (not suitable for shooters).
- AirPlay: 30–50 ms (acceptable for rhythm games).
- Steam Link: 10-30 ms (best option for gamers).
- Google Cast: 100–200 ms (for video only).
To reduce latency, use a router that supports Wi-Fi 6 and connect the TV via cable.
Is it possible to broadcast a laptop screen to a TV via the Internet (not a local network)?
Technically yes, but with serious limitations:
- Use TeamViewer or AnyDesk, but the delay will be 300+ ms.
- Steam Link allows you to connect via the Internet, but requires a speed of at least 50 Mbps.
- Parsec — a specialized program for remote access with a delay of ~20 ms, but registration is required.
For stable operation it is better to use local network.