Modern technology allows you to eliminate unnecessary wires and enjoy content on a big screen without complex equipment. Streaming video from a personal computer to a TV wirelessly takes just a few minutes with proper setup. Wireless connection Provides access to movies, TV series, and personal archives in high definition, turning your living room into a home theater.
To successfully implement this task, you need to understand that your router acts as a bridge between devices. Connection stability directly depends on signal quality and channel bandwidth. If you plan to watch 4K video, the requirements for data transfer speed increase many times, so it is important to consider the capabilities of your equipment before starting the setup.
There are several main protocols and methods, each with its own characteristics. The choice of a specific method depends on your computer's operating system, TV model, and personal preferences regarding image quality and latency. In this article, we'll examine the most effective methods in detail so you can choose the best option for your situation.
Wireless streaming technologies: DLNA, Miracast, and others
Before you begin setting up, it's important to understand the terminology, as different devices support different standards. DLNA (Digital Living Network Alliance) is the most common standard for transmitting multimedia content over a local network. It allows a TV to view computer file folders as network storage.
Unlike DLNA, the technology Miracast It's designed for screen mirroring. It transmits images in real time, making it ideal for presenting presentations or browsing the web, but may introduce a slight delay in video playback. The protocol AirPlay is a proprietary solution from Apple, but many modern TVs already have built-in support for this technology.
- 📺 DLNA: Ideal for watching pre-downloaded movies and TV series in high quality.
- 🖥️ Miracast/WiDi: The best choice for lag-free desktop display or gaming.
- 🍏 AirPlay 2: The standard for Apple ecosystem users, ensuring stable synchronization.
⚠️ Note: Some older TV models may not support hardware decoding of modern codecs (e.g., HEVC/H.265) when streaming. In this case, the TV may display a black screen with sound or not display the file at all.
Preparing equipment and checking the network
The foundation of any wireless data transfer is a high-quality local network. Before starting setup, make sure both your computer and TV are connected to the same Wi-Fi network. If your router supports dual-band, it's critical that both devices operate within the same range. 5 GHzThe 2.4 GHz frequency is often congested and will not provide sufficient bandwidth for high-definition video streaming.
Check your computer's firewall settings. System security tools often block external connection attempts, treating the TV as an unknown device on the network. You may need to add an exception for the media service or temporarily change the network profile from "Public" to "Private."
☑️ Checking connection readiness
It's also worth paying attention to the distance between the router and the receiving device. Walls and household appliances can significantly weaken the signal. If artifacts or buffering appear during video transmission, try moving the router closer to the viewing area or using a Wi-Fi repeater.
Method 1: Using Windows Built-in Tools (Projection)
Windows 10 and 11 operating systems have a built-in "Connect" feature that utilizes Miracast technology. This is the fastest way to display an image on your screen without installing additional software. To get started, select the signal source on your TV remote. Screen Share, Miracast or Wireless monitor.
On your computer, press the key combination Win + KThe "Connection" panel will appear on the right side of the screen, where the system will begin searching for available displays. Select your TV from the list. Once paired, your PC's screen will be mirrored on the TV.
What to do if the computer doesn’t see the TV?
Make sure Wi-Fi Direct is enabled on your TV. On some Samsung models, this is called "Connection Guide," while on LG models, it's called "Connect to a Mobile Device." Also, check that discovery is enabled in the Windows projection settings: Settings → System → Project to this PC.
To adjust display settings, click Win + PHere you can choose the operating mode: screen duplication, desktop extension, or using the TV as the primary monitor. Extend mode allows you to use the TV as a second monitor, moving the video player window to it while you continue working on the PC monitor.
Method 2: Setting up a DLNA server to play files
If your goal is to play files from your hard drive rather than mirror your screen, DLNA is the better choice. This method is less demanding on processor resources and provides a more stable image. In Windows, this feature is called "Media Streaming."
Go to Settings → Apps → Apps & Features → Advanced Settings → Optional Features. Find and install Windows Media Player (if it was uninstalled). Then go to Control Panel → Network and Sharing Center → Streaming Media Settings.
| Parameter | Recommended value | Description |
|---|---|---|
| Network profile | Private network | Provides visibility of devices on the local network |
| Stream quality | High (HD/4K) | Affects the bitrate of the transmitted video |
| Access permission | Allowed | It is necessary to confirm access for a specific TV |
| Formats | All supported | Automatic conversion on the fly |
After streaming is enabled, open File Explorer and locate the folder containing the video files. Right-click the file, select "Cast to Device," and select your TV. The video will start playing automatically, decoding it using the TV's built-in player.
Using Google Chrome Browser for Broadcasting
The Google Chrome browser has powerful built-in functionality for transferring content via the protocol ChromecastThis method is convenient because it works on almost any Smart TV, even if it doesn't natively support Miracast.
Open your computer's browser and click the three dots in the upper-right corner. Select "Cast." In the menu that opens, you can choose to cast the current tab, the entire desktop, or a specific file. If you have a smart speaker or TV with Chromecast built-in, it will appear in the list of available devices.
The advantage of this method is its versatility. You can stream videos from websites that don't have built-in Smart TV support or show presentations directly from cloud storage. However, it's important to remember that streaming a browser tab places a strain on your computer's processor, as it encodes the video stream on the fly.
Third-party solutions: Plex, Kodi, and VLC
For advanced users looking to create a full-fledged media center, specialized applications are ideal. Plex And Kodi transform your computer into a powerful server that not only transfers files, but also beautifully designs your library with posters, descriptions, and metadata.
VLC Media Player can also stream video to DLNA/UPnP devices. Open a video file in VLC, click "Playback" → "Renderer," and select your TV. This is a great way to quickly play a file without setting up complex servers.
⚠️ Note: The Plex and Kodi app interfaces are regularly updated by the developers. The location of network settings or adding libraries may differ from that described in older guides. Always consult the latest documentation on the developers' official websites if you have trouble finding the menu item you need.
Using a Plex server requires installing the server on your PC and the client app on your TV (if it doesn't natively support the technology). This ensures the best quality and compatibility with all video formats, as the server can transcode video in real time into a format the TV can understand.
Resolving lag and image quality issues
Even with proper setup, users may experience audio and video desynchronization or intermittent freezes. This is most often caused by Wi-Fi congestion from neighboring routers. In this case, changing the broadcast channel in the router settings to a less congested one may help.
If the video is constantly buffering, try lowering the bitrate or resolution in the player settings. An outdated Wi-Fi adapter driver could also be the problem. Update the drivers through the device manager or the laptop manufacturer's website. For desktop PCs, it may sometimes make sense to purchase an external USB Wi-Fi adapter that supports the standard. AC or AX.
In some cases, antivirus software may block the streaming connection. Try adding your home network to the trusted list or temporarily disabling the firewall for diagnostics. If the problem resolves, create an exception rule for port 554 (RTSP) or 1900 (UPnP).
Why can't the TV see the computer on the network?
Most often, the problem is with the network profile. Make sure the network in Windows is marked as "Private" and not "Public." Also, check if network discovery is enabled in the Network and Sharing Center.
Is it possible to stream 4K HDR video over Wi-Fi?
Yes, but only if the router supports Wi-Fi 5 (AC) or Wi-Fi 6 (AX) and both devices are connected to the 5 GHz band. The 2.4 GHz band doesn't provide enough bandwidth for 4K HDR.
Does broadcasting affect internet speed?
Using DLNA doesn't consume internet bandwidth; traffic is limited to local network usage. Using online movie theaters or streaming browser tabs will reduce your internet speed.