Modern technology makes it easy to eliminate unnecessary cables, transforming the living room into a fully-fledged multimedia center. Mirroring your computer's image to a large TV screen is a great way to watch movies, show presentations, or play games without running an HDMI cable across the room.
There are several proven ways to accomplish this, and the method you choose depends on your operating system, TV model, and picture quality requirements. In this article, we'll cover all the current wireless connection options so you can choose the one that best suits your setup.
Wireless video streaming technologies: Miracast, DLNA, and Chromecast
Before you begin setting things up, it's important to understand the basic differences between the major media transfer protocols. Miracast — is a standard that allows for one-to-one screen mirroring, creating a direct connection between devices without the need for a router, although its infrastructure is often used.
Unlike him, DLNA (Digital Living Network Alliance) is designed primarily for streaming already stored files (video, photos, music) from a PC to a TV, and not for duplicating the desktop in real time. The protocol Google Chromecast works differently, requiring the Chrome browser or a corresponding application to send content.
It's important to note that not all TVs support all standards out of the box. If yours Smart TV Released a few years ago, it may not have built-in Miracast support, but it works fine through DLNA servers.
Wireless transmission of high-definition video streams places significant demands on network bandwidth. Using the standard Wi-Fi 5 (802.11ac) or newer significantly reduces latency and compression artifacts.
Preparing equipment and network for work
The foundation of a stable wireless picture is a high-quality local network. For a successful connection computer And TV must be connected to the same Wi-Fi network. If your router supports dual-band mode, it is highly recommended to use the frequency 5 GHz.
The 2.4 GHz frequency is often congested by neighboring networks and household appliances, resulting in choppy video and out-of-sync audio. Make sure both devices have Wi-Fi enabled and are within range of a strong signal.
Check that your PC's wireless adapter drivers are up-to-date. Outdated network card software can block device discovery or cause an unstable connection when transferring large amounts of data.
⚠️ Note: If your router is configured in AP Isolation mode, devices will not be able to see each other. This feature must be disabled in the router settings.
It's also worth checking to see if your computer has aggressive power-saving settings for its Wi-Fi adapter, which could interrupt data transfer when activity decreases.
☑️ Check before connection
Built-in Projection feature in Windows 10 and 11
The easiest way to mirror your screen on a Windows PC is to use the built-in utility. Press the key combination Win + K on the keyboard. A "Connection" panel will appear on the right and begin searching for available wireless displays.
If your TV supports Miracast, it will appear in the list. After selecting the device, a connection permission prompt may appear on the TV screen, which you'll need to confirm with the remote. This method ensures smooth video and audio transmission with minimal latency.
In some cases, the system may report that your PC doesn't support Miracast. This often happens with older graphics cards or when the appropriate drivers are missing. In this situation, you can try updating your graphics card drivers or using alternative methods.
To configure connection settings, go to Settings → System → Project to this PCHere you can configure your computer's visibility to other devices and require a PIN for security.
What should I do if the device search didn't yield any results?
Check that Screen Mirroring or Miracast is enabled in the TV's settings menu (often located under "Network" or "Connections"). Also, try temporarily disabling Windows Firewall.
Broadcasting via Google Chrome browser (Chromecast)
If your TV has a built-in Chromecast module or you are using an external set-top box, the browser Google Chrome will be a great tool. Open your browser on your PC, click the three dots in the upper right corner, and select Save and Share → Broadcast...
In the window that opens, you'll see a list of available devices. Before connecting, click the button. Sourcesto choose what exactly you want to broadcast: a browser tab, the entire desktop, or a separate application window.
This method is especially convenient for viewing web content, YouTube, or document sharing. Image quality depends on internet speed, as data may pass through Google servers, although with a local setup, traffic flows directly.
The advantage of this method is its cross-platform nature: it works equally well on Windows, macOS, and Linux. The main requirements are the Chrome browser installed and a stable connection to the router.
Using DLNA to play media files
If your goal isn't desktop mirroring, but rather watching movies or photo galleries, DLNA technology is ideal. Windows 10 and 11 have a built-in media server, which can be activated through "Streaming Media Settings."
After enabling the feature in the "Media Streaming Settings" menu, you must allow access to your TV. Typically, your TV is automatically detected by the system and assigned the "Allowed" status.
To manage content, open any video file on your computer, right-click and select Transfer to deviceSelect your TV from the list and playback will start automatically.
This method doesn't put a strain on the PC processor, as the file is transferred directly. The TV decodes the video stream itself, so the image quality will be the highest supported by the screen.
| Method | Best use | Latency | Requirements |
|---|---|---|---|
| Miracast | Games, presentations, desktop | Low | Wi-Fi Direct support |
| DLNA | Movies, photos, music | Absent | Local area network |
| Chromecast | Web content, YouTube | Average | Chrome Browser / Application |
| Third-party software | Old TVs without Smart | Depends on the software | Installing programs |
Third-party programs for older TVs
If your TV isn't a Smart TV or doesn't support modern standards, software can help. Programs like Let'sView, AirServer or ApowerMirror allow you to turn any PC into a media server.
The principle is simple: you install the client on your computer and, if necessary, the app on your TV (or use the TV's built-in browser to access your PC's IP address). A virtual connection is then created to transmit the video stream.
Some solutions allow you to control your computer with your TV remote, turning a regular screen into an interactive panel. This is especially useful for viewing photo archives or simple presentations.
It's worth keeping in mind that free versions of such programs often have limitations on runtime or image quality, and may also add watermarks.
Troubleshooting and troubleshooting
Even with proper settings, problems may still occur. If the image is choppy or the sound is missing, try lowering the output resolution in Windows display settings. High Resolution 4K may be too heavy for unstable Wi-Fi channel.
A common cause of connection failure is firewall or antivirus settings. Make sure the services are added to the exceptions. Multimedia system and your browser. Blocking incoming connections in the "Public Network" profile can also interfere.
If the sound comes through your laptop speakers instead of your TV, click the volume icon in the tray, select the output device, and select your TV or wireless audio device.
⚠️ Please note: TV and operating system menu interfaces are updated regularly. The layout of menu items may differ from those described, so please consult the manufacturer's current documentation.
In some cases, simply restarting the router and both devices helps. Resetting network settings often resolves IP address conflicts that occur on the local network.
Why is there no sound when screencasting?
Check that the "Speakers (TV Name)" audio output device is selected in the Windows volume mixer. Some older Miracast protocols do not transmit audio, requiring a separate Bluetooth connection.
Questions and Answers (FAQ)
Is it possible to stream a screen if the router is not connected to the internet?
Yes, it's possible. Miracast and Wi-Fi Direct technologies create a direct connection between devices without requiring a global network connection. The main thing is that the Wi-Fi modules are working properly.
Does broadcasting affect internet speed for other devices?
When using DLNA or local Miracast, traffic flows within the local network and doesn't consume internet bandwidth. However, when streaming through a browser (Chromecast) or online services, traffic is consumed significantly.
Why is the picture on the TV not full screen?
Check the image scaling settings on your TV remote (Zoom, Aspect Ratio, or 16:9 buttons). Also, make sure the resolution in Windows matches the native resolution of your TV.
Will streaming work over guest Wi-Fi?
Most likely not. Guest networks typically have client isolation, preventing devices from seeing each other. Use your main home network.