Modern technology allows you to completely eliminate unnecessary wires, transforming your living room into a fully-fledged media center. Connecting your computer to your TV via Wi-Fi gives you access to a huge collection of movies, photos, and games on the big screen without the need to run HDMI cables across the room. This solution is ideal for those who value aesthetics and minimalism in their interiors, as well as for users whose devices are located quite far from each other.
There are several basic data transfer protocols, each of which has its own characteristics and areas of application. Wireless broadcasting This can be accomplished through built-in operating system functions, dedicated apps, or smart home standards. The specific method you choose depends on your TV model, Windows or macOS version, and the quality of your home network. In this article, we'll cover all the current connection methods in detail.
Before you begin setup, it's important to make sure both devices—your computer and your TV—are connected to the same wireless network. Router The router must support high-definition video transmission standards to avoid lag and image artifacts. If you use a dual-band router, it is highly recommended to switch both devices to the 5 GHz frequency for maximum channel throughput.
Wireless video transmission technologies: Miracast, DLNA and others
Understanding the differences between the major data transfer protocols will help you choose the most appropriate method for your needs. Miracast is a wireless media transmission standard that allows you to stream images from your computer screen to your TV in real time. This technology works directly between devices (peer-to-peer) and doesn't require a router, although it is most often used through one.
Unlike Miracast, the protocol DLNA (Digital Living Network Alliance) is primarily designed for streaming existing files. You won't be able to stream your desktop or a game, but you can easily play a movie from your PC's hard drive on your TV. Chromecast built-in Google offers a different approach, allowing Chrome browser tabs or compatible apps to "send" content to your TV using an internet connection.
- 📺 Miracast: Full screen cloning or extension, ideal for presentations and gaming.
- 🎬 DLNA: Transferring media files (video, photos, music) from the server to the client.
- 🌐 Chromecast/AirPlay: Streaming from browsers and mobile apps.
⚠️ Please note: Miracast technology is sensitive to interference. If you experience audio and video out of sync, try moving your computer closer to the router or switching to a less congested channel.
Apple users are faced with an ecosystem AirPlay, which provides the highest quality streaming, but requires a compatible TV (with AirPlay 2 support) or Apple TV. There is no native AirPlay support for Windows PCs, but third-party solutions exist. It's important to note that Input lag is always higher when connecting wirelessly than when using an HDMI cable., which can be critical for competitive shooters.
Preparing equipment and network for stable operation
The quality of your wireless connection directly depends on your home network infrastructure. Before attempting to sync devices, you should review your router settings. Make sure the "Synchronize" function is enabled on your router. WPS (Wi-Fi Protected Setup), which can make pairing easier, although it is often recommended to turn it off after setup for security reasons.
Particular attention should be paid to the frequency range. Standard 802.11ac (Wi-Fi 5) and newer 802.11ax (Wi-Fi 6) The 5 GHz band provides significantly higher data transfer speeds compared to the congested 2.4 GHz band. If your router broadcasts the same network with the same name for both bands (Smart Connect), try temporarily separating them or forcibly switching your PC and TV to 5 GHz.
☑️ Check before connection
It's also crucial to update the software. On your TV, this can be done through the menu. Settings → Support → Software UpdateCheck your computer for updates to the wireless adapter and video card drivers. Outdated drivers are often the cause of the system not recognizing available displays.
⚠️ Note: TV menu interfaces from different manufacturers (Samsung, LG, Sony) may differ. If you don't find the update option in the specified location, please refer to the user manual for your specific model.
Cast your Windows screen to your TV using Miracast
The easiest way to connect a Windows 10 or 11 PC to a TV is to use the built-in "Projection" feature. This technology is based on the Miracast standard and doesn't require any additional software. Make sure the signal reception feature is enabled on your TV (on Samsung TVs, it's called "Connection Guide" or "Screen Mirroring," and on LG TVs, it's called "Screen Share").
On your computer, press the key combination Win + KA "Connection" panel will appear on the right, where your TV should appear within a few seconds. Click it, and the system will attempt to establish a connection. Depending on your settings, your TV may ask for connection confirmation—use your remote to confirm.
After successful pairing, you can control the operating mode through the menu System → DisplayWindows will offer several options: screen mirroring, desktop extension, or using the TV as the main monitor. For watching movies, mirroring is more convenient, while for working on a computer, extending is more convenient, allowing you to drag windows onto the larger screen.
- 💻 Duplicate: The image on the TV copies the contents of the PC monitor.
- 🖥️ Expand: The TV becomes a second monitor, you can drag windows.
- 🔲 Second screen only: The PC monitor goes dark, the image is only on the TV.
What to do if the computer doesn’t see the TV?
Make sure Miracast is enabled on your TV. Check that your antivirus or Windows Firewall isn't blocking network discovery. Try rebooting your router and both devices. In rare cases, temporarily disabling your VPN may help.
If the connection is established but the video is lagging, try lowering the resolution or refresh rate in Windows display settings. Also, close background applications that consume bandwidth, such as torrents or cloud syncing apps.
Using DLNA to Play Your Media Library
If your goal is to watch a movie or a presentation of photos stored on your hard drive, the DLNA protocol is a more effective solution than full screen mirroring. It allows the TV to access your computer's media library as if it were network storage. In Windows, this feature is implemented through "Media Streaming Settings."
To activate, open the "Control Panel" (can be found through the search), go to the section Network and Internet → Network and Sharing Center → Streaming media settingsClick the "Enable media streaming" button and select your TV from the list of available devices. You can configure access rights for each device individually.
After setting up, press the signal source selection button on the TV remote control (Source or Input) and find your computer in the list (often named by your username or PC brand). Once opened, you'll see the "Videos," "Music," and "Pictures" folders. Navigation is accomplished using the standard Smart TV interface.
| Parameter | Description | Recommendation |
|---|---|---|
| Video formats | MP4, MKV, AVI, MOV | Check TV codec support |
| Audio formats | MP3, FLAC, AAC, WAV | No restrictions |
| Images | JPG, PNG, BMP | 4K support depends on the TV |
| Subtitles | SRT, SUB | Should be located next to the video |
⚠️ Note: The DLNA protocol does not support audio transmission through your PC's external speaker system if you use it as a source. Audio will be played through your TV speakers or any connected audio system.
For more advanced users, there are media servers such as Plex or JellyfinThey don't just transfer files; they can transcode videos on the fly into a format the TV can understand and load movie covers with descriptions, creating a beautiful interface.
Broadcasting from the Google Chrome browser (Chromecast)
Owners of Google Cast-enabled TVs (Chromecast built-in) or Chromecast set-top boxes can use the Google Chrome browser on their PC as a universal streaming tool. This method is convenient because it allows you to display not only videos from websites but also any entire browser tab on the big screen.
Open the Chrome browser on your computer and make sure you're signed in to your Google account. Click the three dots (menu) in the upper right corner and select Broadcast... (Cast). The browser will begin searching for available devices on the network.
In the window that appears, you'll see a list of devices. Before selecting your TV, click the "Sources" button. Here you can choose what to stream: the current tab, the entire desktop, or a specific file from your computer. After selecting the source, click the name of your TV.
- 🌐 Broadcast tab: Optimal for YouTube, online cinemas and web presentations.
- 🖥️ Screencast: Shows everything that happens on your PC monitor, including notifications.
- 📁 File: Directly open a video file from a disc for playback on TV.
The quality of streaming via Chrome depends on the computer's processor, as it encodes the video stream in real time. On low-end laptops, this can put a strain on the system. To stop streaming, simply click the Cast icon in the browser again or the button on the TV remote.
Connecting a Mac to a TV via AirPlay
Apple ecosystem users can expect maximum integration through AirPlay 2 technology. Many modern TVs (Samsung, LG, Sony, Vizio) have built-in AirPlay support, allowing you to connect a MacBook or iMac without purchasing additional hardware (Apple TV).
On a Mac, click the Control Center icon in the menu bar (the two crossed lines) and select Screen Mirroring. Select your TV from the list. If this is your first time mirroring, a code may appear on the TV screen that you'll need to enter on your computer.
AirPlay functionality not only allows you to mirror your screen but also use your TV as a separate display in Extended Mode. Furthermore, many applications (Safari, QuickTime, VLC) have a dedicated AirPlay button for displaying the video container, leaving the application interface on your computer. This saves system resources and ensures better image quality.
It's important to note that AirPlay only works reliably within a single subnet. If you have a complex network with multiple routers (a mesh system), make sure your devices aren't spread across different guest networks or isolated VLANs.
Problem solving and quality optimization
Even with proper setup, users may encounter issues: the image flickers, the sound lags, or the connection constantly drops. Most often, the cause is an unstable Wi-Fi signal. Try relocating the router or computer so there are fewer physical obstacles between them.
Another common cause is an outdated Wi-Fi adapter driver. Visit your laptop or motherboard manufacturer's website and download the latest driver for your wireless module. Also, check if your Windows power plan is set to power-saving mode for your Wi-Fi adapter, which could reduce signal strength.
If nothing helps, you can try resetting your network settings. In Windows 10/11, this can be done via Settings → Network & Internet → Network resetThis action will delete saved Wi-Fi passwords and reset network settings to factory defaults, which often resolves software conflicts.
Why doesn't the TV see the computer even though Wi-Fi is working?
The issue is most likely related to your network type. Make sure your Windows network profile is set to "Private" and not "Public." For security reasons, the system blocks other devices from being discovered in a public profile.
Is it possible to play games on TV via Wi-Fi?
Technically, it's possible, but experience will vary depending on the genre. For turn-based strategy or card games, latency isn't a problem. For shooters and racing games, a wireless connection can introduce noticeable lag, so an HDMI 2.1 cable is preferable for gaming.
Does connecting a TV affect internet speed?
When streaming over a local network (Miracast, DLNA), the internet connection isn't loaded; the traffic is handled within the router. However, if you're watching online videos via Chromecast, the traffic is handled over the internet, and the overall connection speed may decrease for other devices.
Do you need a router for Miracast?
Not always. Many modern TVs and video adapters support Direct mode, which allows the PC to connect directly to the TV via Wi-Fi, bypassing the router. However, in this case, the computer may lose internet access.