Modern multimedia systems make it easy to display content from your computer on a large TV screen, turning ordinary viewing into a full-fledged cinema experience. Wireless image transmission HDMI is becoming the standard, eliminating the need for users to run long HDMI cables across the room. This is convenient for showing presentations, watching online videos, or playing games on a large display without losing quality.
However, the setup process may differ depending on your computer's operating system and the platform it runs on. Smart TVThere are various protocols such as Miracast, DLNA and proprietary solutions from Google or Apple, each with its own unique features. Understanding how they work will help you avoid common connection errors and signal delays.
In this article, we'll take a detailed look at all the current methods for syncing devices. We'll cover the built-in features of Windows and macOS, as well as the capabilities of third-party apps. A critical condition for the stable operation of all the described methods is that both devices are located on the same local Wi-Fi network. If your router broadcasts the network at 2.4 and 5 GHz frequencies with different names, make sure that your PC and TV are connected to the same SSID.
Wireless streaming technologies: Miracast, DLNA, and AirPlay
Before setting up, it's important to understand the basic technologies that enable video stream transmission. Each solves specific problems and has varying degrees of compatibility with equipment. Choosing the right protocol directly impacts image quality and latency.
Miracast Wi-Fi Direct is a standard developed by the Wi-Fi Alliance that enables the transmission of high-definition video and audio without compression. It operates using Wi-Fi Direct, minimizing the load on the main router. This technology is built into most modern Samsung, LG, and Sony TVs, as well as Android TV devices.
Unlike him, DLNA (Digital Living Network Alliance) is designed primarily for streaming media content (photos, videos, music) from a server to a renderer. It cannot stream a computer desktop in real time; it only opens files. AirPlay is an ecosystem solution from Apple that provides better integration for Mac and iPhone devices, but requires a corresponding module in the TV.
⚠️ Note: Miracast may not work correctly if Client Isolation is enabled on your router. This feature prevents devices within the network from communicating with each other, which is necessary for a direct connection.
A comparison of the main characteristics of the technologies will help you make your choice:
| Technology | Transmission type | Latency | OS support |
|---|---|---|---|
| Miracast | Screencasting | Low | Windows, Android |
| DLNA | File streaming | Absent | All platforms |
| AirPlay 2 | Screencasting | Minimum | macOS, iOS |
| Chromecast | Tab broadcasting | Average | Windows, macOS, Linux |
Connecting Windows 10 and 11 to a TV via Miracast
Microsoft operating systems have built-in support for wireless displays. This is the easiest method, requiring no additional software installation. The "Projection" feature searches for compatible receivers within range.
To get started, make sure Screen Mirroring or Anyview Cast is enabled on your TV. In the Input menu, select the option corresponding to your wireless connection. Then, on your PC keyboard, press Win + KThe system will start searching for available devices.
In the list that appears, select the name of your TV. If this is your first time connecting, a permissions request may appear on the TV screen. Confirm this with the remote. Once paired, the image from your PC monitor will be mirrored on the big screen.
☑️ Pre-connection check for Windows
In some cases, you may need to manually activate the receiver in Windows settings. Go to Settings → System → Project to this PCHere you can configure device visibility and require a PIN for security. If the options are grayed out, your Wi-Fi adapter may not support Wi-Fi Direct.
⚠️ Note: Smart TV interfaces are constantly being updated. The location of the "Screen Mirroring" or "Wireless Sharing" option may vary depending on the firmware version. Please check your device's menu for the latest names.
Using Google Chrome to Cast to Android TV
If the built-in Windows tools are unstable or your TV is based on the platform Android TVGoogle Chrome is a great solution. It has a built-in Cast feature that allows you to cast a single tab or your entire desktop.
Open your browser and click the three dots in the upper-right corner of the menu. Select "Cast." In the window that opens, click "Sources" and select "Cast Desktop." Then click your TV's name in the list of available devices.
This method is convenient because it doesn't depend on the Windows version and works even on older computers, as long as a modern browser is installed. Stream quality depends on the Wi-Fi connection speed, as the video stream is encoded using software.
What to do if the TV is not found in Chrome?
If your browser can't detect your TV, make sure your antivirus or Windows Firewall isn't blocking local network discovery. Also, try temporarily disabling your VPN, if it's active, as it changes your device's virtual location.
For users who require more advanced functionality, specialized extensions are available. However, the browser's standard capabilities are usually sufficient for viewing web pages, photo albums, and videos from non-DRM-protected websites.
Streaming from macOS to Smart TV: AirPlay and Alternatives
Apple computer owners are lucky with the ecosystem, but there is a catch: native technology AirPlay Works only with TVs that have built-in support for this standard (for example, new models from Samsung, Sony, LG) or with an Apple TV set-top box.
Check for the AirPlay icon in the menu bar or Control Center of macOS. If your TV doesn't officially support AirPlay, you can use third-party receptor apps installed on your TV. Popular options include: AirScreen or Receiver for AirPlay, available in Smart TV app stores.
After installing the app on your TV, launch it. Your computer will see the virtual receiver as a regular AirPlay device. Select it in the audio and video output menu. Latency when using third-party emulators may be slightly higher than with a native connection.
An alternative universal method is to use the Chrome browser or specialized software like JustStreamThese programs emulate a DLNA server or use their own protocols to transmit images to any screens on the network.
Organizing a media library via a DLNA server
If your goal isn't screen mirroring, but rather comfortable viewing of movies or photo galleries, DLNA technology is ideal. It allows the TV to directly stream files from your computer's hard drive, using the TV's processing power to decode the video.
Windows 10 and 11 have built-in Media Streaming. Find it in the Network Control Panel. Enable streaming and add movie folders to the list of shared resources. Your computer will appear in the TV's input source menu.
The advantage of this method is that image quality doesn't depend on the PC's performance during viewing. The TV handles the video stream itself. Furthermore, playback can be controlled (pause, rewind) directly from the TV remote.
For more flexible settings, it is recommended to use a third-party media server, for example, Plex or JellyfinThese programs automatically download movie covers, descriptions, and sort content, creating a beautiful interface on your TV screen.
Troubleshooting connection and latency issues
Even with proper setup, users may experience artifacts, audio desync, or connection drops. Most often, the problem stems from wireless congestion or a weak signal.
If the image is choppy, try switching your router to 5 GHz mode. This band is less congested with neighboring networks and provides the higher throughput needed for the video stream. Make sure the PC and router are in direct line of sight or separated by no more than one wall.
- 📶 Update your drivers Update your computer's Wi-Fi adapter to the latest version from the manufacturer's website.
- 🔄 Reboot your router and TV - this clears the cache and resets temporary network errors.
- 🛡️ Check your antivirus, which can block local network communication between devices.
It's also worth paying attention to the processor load. If your PC is busy with heavy calculations, it may not be able to encode the video stream for broadcasting. Close unnecessary applications before starting screen sharing.
Frequently Asked Questions (FAQ)
Is it possible to transmit an image if the router does not have internet access?
Yes, you can. Miracast and Wi-Fi Direct don't require internet access; devices connect locally. However, for DLNA or Chromecast, initial setup and authorization of some apps may require a short-term internet connection.
Why is there no sound on the TV during broadcasting?
Most likely, your computer speaker is still the default playback device in Windows. Click the speaker icon in the system tray, select the arrow, and change the audio output to the name of your TV or wireless adapter.
Does broadcasting affect internet speed for other devices?
When using Miracast (Wi-Fi Direct), traffic flows directly between the PC and TV, without loading the router's bandwidth. When using Chromecast or DLNA, data is transmitted through the router, which may slightly reduce the available bandwidth for other users, especially with high video bitrates.
How to reduce cursor lag when controlling a PC from a TV?
It's difficult to completely eliminate Wi-Fi latency. To minimize it, use the 5 GHz frequency, disable power saving in your Wi-Fi adapter settings, and ensure there are no strong sources of interference nearby, such as microwave ovens.