It's hard to imagine modern home entertainment without the integration of a computer and a large screen. Operating system Windows 11 Offers built-in tools for wireless media streaming that don't require complex third-party software. Users often look for a way to display their desktop or a movie on a TV so they can enjoy the content with the whole family without staring at a small laptop monitor. This is especially relevant for those who value minimalism and don't like the hassle of unnecessary cables.
The process of synchronizing devices has become much easier thanks to the standard Miracast, which is supported by most modern smart TVs. You don't need to be a network expert to set up streaming in a couple of minutes. The main thing is that both devices are on the same local network and have working network adapters. In this article, we'll cover all the connection details, potential issues, and alternative data transfer methods.
DLNA Other protocols also remain in demand, especially if your goal is simply to play a video file rather than mirror the entire screen. The choice of method depends on your goals: whether you need to control your computer from the couch or simply watch a movie. Below, we'll cover each setup step in detail.
Checking device and network compatibility
Before you begin setting up, you need to make sure that your equipment is technically ready for wireless video transmission. Both devices must support the Miracast standard for lag-free screen mirroring. Most TVs released after 2015 have a built-in Wi-Fi Direct module, which enables this functionality. On the PC side, a wireless adapter with the appropriate drivers is required.
A critical requirement is that the computer and TV be on the same subnet. This means they must be connected to the same router. If you have a dual-band router at home, make sure both devices can see each other, even if one is connected to the 2.4 GHz network and the other to the 5 GHz network. In rare cases, client isolation settings on the router can block device detection.
- 📺 Make sure that Screen Mirroring, Miracast, or Wireless Monitor (the name varies by brand, e.g. Samsung, LG, Sony).
- 💻 Make sure your PC's Wi-Fi module is enabled, even if you're using an Ethernet cable for internet.
- 🌐 Make sure the network type in Windows is set to "Private" and not "Public" to allow discovery.
- 🔄 Update your wireless adapter drivers through Device Manager or the manufacturer's website.
⚠️ Note: Some older router models may not correctly process device discovery broadcast packets. If your TV doesn't detect your PC, try temporarily disabling the guest network on your router.
Using the built-in "Projection" function
The fastest way to start broadcasting is to use a hotkey in Windows 11. The combination Win + K Opens the "Connection" sidebar, where the system automatically scans for available wireless displays. This is a built-in tool that doesn't require any additional service configuration if everything is working correctly. The user simply selects their TV from the list that appears.
After selecting a device, a connection permission prompt may appear on the TV screen. Confirm this with the remote control. Picture quality and latency will depend on your router's power and signal strength. For a more comfortable experience, the Windows interface may switch to a TV-optimized mode, adjusting the resolution and refresh rate.
If the connection is successful, but the image is choppy or has low resolution, check your power settings. Windows may be trying to conserve power from the Wi-Fi adapter, causing the stream to become unstable. It's also a good idea to move closer to the router or remove any physical obstacles between the PC and TV.
- 🚀 Click
Win + Kto call the connection menu. - 🔍 Wait until your TV's name appears in the list of available devices.
- ✅ Accept the connection request on the TV screen if it appears.
- ⚙️ Use the "Repeat" or "Extend" mode in the display settings menu for convenience.
⚠️ Note: When using the projection function, the sound may not switch to the TV by default. Check your system's sound settings and select the "Speakers (TV Name)" output device.
Setting up DLNA for media playback
If your goal isn't to duplicate your desktop, but simply to play a movie or photos stored on your hard drive, DLNA is more efficient. It places less strain on the network and doesn't require constantly streaming the entire OS interface. In Windows 11, shared resources are managed through the Settings app and the classic Control Panel.
To get started, open "Media Streaming Settings." The system will prompt you to enable shared media storage. Once enabled, the TV will have access to your video, music, and picture folders. You can manage access by allowing or denying specific devices access to content.
☑️ DLNA setup checklist
On your TV, open the media app (often called "Media," "Gallery," or "Smart Share"). Your computer should appear in the list of sources. By navigating through folders, you can launch files directly from your PC's hard drive. This is a great way to watch large 4K files, which can experience lag when streaming wirelessly.
- 📂 Open "Settings" → "Network & Internet" → "Advanced network settings".
- 🎬 Go to "Media Streaming Settings" and click "Turn on Streaming".
- 📺 Find your TV in the list and make sure the "Allowed" box is checked.
- 🎞️ Open the desired video file on your PC, right-click and select "Transfer to device".
Connecting via Microsoft Edge browser
Browser Microsoft EdgeBuilt into Windows 11, Cast Tabs offers a hidden but highly useful feature for casting tabs or the entire screen to Chromecast or DLNA-enabled devices. This is ideal for showing a presentation from a browser or playing a video from a website that doesn't have a "Cast" button. This method is stable and requires no plugins.
To launch the feature, click the three dots in the upper-right corner of the browser and select "Cast." The browser will scan the network and suggest available devices. You can choose to cast just the current tab, the entire browser window, or your entire computer screen. This gives you flexibility in choosing content.
Why might Edge streaming be better than the system one?
System projection (Miracast) often copies the entire desktop, including notifications and background processes, which can be distracting or reduce productivity. Casting via Edge only sends the contents of the tab, saving CPU resources and allowing you to work in other programs simultaneously without projecting them to the big screen.
Image quality when streaming through a browser is usually high, but it depends on internet speed if the content is streamed online. If you stream a local file opened in a browser, the load is placed on the local network. This method is especially popular among users who watch videos on websites that don't have native Smart TV app support.
- 🌐 Open Microsoft Edge and go to a website with video or content.
- 📡 Click the menu (three dots) → "Broadcast".
- 🖥️ Select source: "Tab", "Screen" or "File".
- 📺 Click on your TV's name to start playback.
Alternative methods and third-party software
Windows' built-in tools aren't always ideal, especially if you have an older TV or specific signal latency requirements. In such cases, third-party programs can help. One of the most popular is AirPlay (for the Apple ecosystem, but there are emulators for Windows) and various DLNA servers such as Plex or KodiThey transform your PC into a full-fledged media center.
Program Plex Requires installation of a server component on a PC and a client application on a TV. This creates a beautiful library with movie posters and descriptions. Kodi It works on a similar principle, but offers more flexible settings. For gamers who want to stream games from their PC to their TV with minimal latency, Remote Play or streaming via Steam Link.
| Method | Delay | Quality | Complexity |
|---|---|---|---|
| Miracast (Win+K) | Average | High | Low |
| DLNA | Low | Maximum | Average |
| Edge browser | Average | Depends on the site | Low |
| Plex / Kodi | Low | Maximum | High |
Diagnosing and troubleshooting
Even with proper setup, problems may still occur. A common issue is that the TV simply doesn't see the computer in the list of available devices. In this case, the first step is to check Windows Firewall. It may be blocking incoming connections for the "Media Sharing" feature. Restarting the "SSDP Discovery" service in the Services menu also helps.
Another common complaint is audio and video desynchronization or image artifacts. This almost always indicates a congested Wi-Fi channel. If there are many neighboring networks nearby, the signal may become clogged. In this case, try switching your router to a less congested channel or using the 5 GHz band, which is less susceptible to interference but has a shorter range.
⚠️ Note: TV interfaces and Windows versions are updated regularly. The location of menu items may differ from what's described. If you can't find the item you need, search in your TV settings using the keywords "Screen," "Cast," or "Mirror."
If all else fails, try resetting your network settings. In Windows 11, this can be done via Settings → Network & Internet → Advanced network settings → Network reset. This will reset all network settings to factory defaults and reinstall your network adapters, which often resolves software conflicts.
- 🛡️ Check your firewall and antivirus to see if they are blocking connections.
- 🔄 Restart your router, computer, and TV (unplug them completely).
- 📶 Make sure that your Wi-Fi adapter drivers are not the standard ones from Microsoft, but from the manufacturer.
- ⚙️ Enable the Universal Plug and Play service in Windows.
Frequently Asked Questions (FAQ)
Why is the image quality low when connected via Wi-Fi?
Stream compression is most likely being used to compensate for the slow network speed. Try switching to a 5 GHz network, moving closer to the router, or lowering the resolution on your PC before connecting.
Is it possible to transmit an image if the TV is not Smart TV?
Yes, you can purchase an external set-top box (TV Box) with Android TV or Chromecast, which connects to the HDMI port of a regular TV and receives a signal from a PC.
Is sound transmitted along with the image?
Yes, when using Miracast and browser streaming, audio is transmitted automatically. With DLNA, audio also comes with the video file. However, in some cases, you may need to manually select the audio output device in the Windows mixer.
Does broadcasting affect internet speed?
Streaming local files (photos, videos from a disk) doesn't use the internet; traffic is limited to your home network. Streaming online videos (YouTube, Netflix) does consume data, but it's sent only once to the device (TV), reducing the load on your PC.
How to turn off projection?
The easiest way is to press a combination Win + K and select "Disconnect". You can also click Win + P and select "PC screen only".