Modern technology makes it easy to eliminate unnecessary cables connecting your computer and TV. Wirelessly transmitting images from your monitor to the big screen has become standard for watching movies, presentations, or playing games. However, users often encounter delays or setup difficulties, unsure which method is best for their specific setup.
There are several main protocols, each of which has its own characteristics. Miracast provides full screen duplication, DLNA suitable for media files, while proprietary solutions like AirPlay or Google Cast Work within specific brand ecosystems. Choosing the right method depends on your computer's operating system and Smart TV functionality.
In this article, we'll cover all the current connection methods, from built-in Windows features to third-party apps. You'll learn how to minimize signal latency and ensure stable high-definition video streaming. The key is to ensure both devices are on the same network.
Hardware and network requirements for stable operation
For successful image streaming, the condition of your local network is critical. Your wireless connection must have sufficient bandwidth, especially if you plan to stream 4K or HDR content. Older routers 802.11n may not be able to handle high-quality streaming video, causing audio and video to become out of sync.
The ideal option is to use a range 5 GHz, which provides higher data transfer speeds and is less susceptible to interference from neighboring networks. If your router is dual-band, make sure both your computer and TV are connected to the 5 GHz network, not the congested 2.4 GHz band.
The distance between devices should also be considered. Walls and household appliances can significantly weaken the signal. For best results, it's recommended to place the router within direct line of sight of the receiving device or use a mesh system for uniform coverage.
⚠️ Note: If you are using a guest Wi-Fi network or corporate Wi-Fi with Client Isolation, devices will not be able to "see" each other and broadcasting will not be possible.
Mirroring your screen in Windows 10 and 11 using Miracast
Microsoft operating systems have built-in support for wireless display technology. This is the easiest method, requiring no additional software. The feature is based on the standard. Miracast, which is supported by most modern Smart TVs.
To start broadcasting, press the key combination Win + K on your keyboard. The "Connection" panel will open on the right, where the system will begin searching for available displays. If your TV is turned on and connected to the same network, it will appear in the list within a few seconds.
After selecting the device, a connection confirmation message may appear on the TV screen. Use the remote control to grant access. Your monitor's image is now fully mirrored on the big screen. You can change the operating mode through the menu. Project, choosing to extend the screen or use the TV as the main monitor.
☑️ Check before connection
It's worth noting that connection quality directly depends on the power of your PC's Wi-Fi adapter. Built-in modules in laptops are usually more stable than cheap USB dongles. If you experience artifacts, try moving your computer closer to the router.
Using Intel WiDi technology and third-party applications
If standard Windows tools are unstable, you can use specialized software. Technology Intel WiDi (Wireless Display) was the predecessor to Miracast, but many still use emulator apps for older TVs. One of the most popular solutions is the program LetsView or AirServer.
Such programs often offer additional features, such as mouse control with a remote control or screen recording. Installing third-party software can help if your graphics card drivers conflict with the built-in Windows projection module.
To set up, you need to download and install the client app on your PC and, in some cases, the server app on your TV (if it's not built into its OS). After launching the app, follow the on-screen instructions to pair using a QR code or PIN.
Why might Miracast not work?
The feature may be disabled at the graphics card driver level or blocked by an antivirus program. Also, some older Wi-Fi adapters do not support the required WFD (Wi-Fi Direct) standard.
| Connection method | Latency | Picture quality | Difficulty of setup |
|---|---|---|---|
| Miracast (Windows) | Low / Medium | High (up to 4K) | Minimum |
| DLNA (Media) | Absent | Original | Average |
| Google Chromecast | Average | High | Low |
| HDMI cable | Absent | No losses | Low |
Broadcasting for macOS and Apple devices (AirPlay)
Apple owners are the luckiest of all thanks to the ecosystem AirPlayIf you have a MacBook and an AirPlay 2-enabled TV (or an Apple TV), the process takes seconds. Unlike Miracast, this protocol is extremely smooth and stable.
To connect, click the "Screen Mirroring" icon in the menu bar or control center. Select your TV from the list. The system will automatically adjust the resolution and frame rate. You can use the TV as a second monitor or completely mirror the image.
It's important that AirPlay support is enabled on your TV. This setting is usually found in the Settings → General → AirPlaySome manufacturers, for example, Samsung or LG, have this feature in their latest models by default.
⚠️ Note: TV interfaces may vary from manufacturer to manufacturer. If you can't find the AirPlay setting, check the official documentation for your model, as manufacturers often change the menu layout during firmware updates.
Broadcasting via Google Chrome browser (Chromecast)
If you don't have a Smart TV, but you have an adapter Google Chromecast or a TV with a built-in Android TV, you can use the browser Google ChromeThis method is convenient because it allows you to broadcast not only tabs, but the entire desktop.
Open the Chrome browser on your computer. Click the three dots in the upper right corner and select Broadcast... (Cast). In the menu that opens, select the source: a tab, a file, or the entire screen. Then click on your device's name.
This method is especially useful for sharing presentations or web content. However, it's less suitable for gaming due to possible browser compression of the video stream. For best performance, close any open tabs before starting the broadcast.
Stream quality depends on your computer's processor load, as it encodes the video stream on the fly. If the image is choppy, try lowering the resolution in your system settings before starting the broadcast.
Resolving lag and image quality issues
Even with a perfect setup, problems can still arise. The most common one is audio and video out of sync. This can be resolved by reconnecting or changing the audio settings in Windows. Go to Control Panel → Sound, find the output device (your TV) and try changing the audio format to 16 bit, 44100 Hz.
If the image appears blurry, check your scaling settings. When connected wirelessly, the system may not detect the TV monitor's DPI correctly. In the display settings (Settings → System → Display) make sure that the recommended resolution for TV is set, usually it is 1920x1080 or 3840x2160.
Frequent connection drops may indicate Wi-Fi channel congestion. Try turning off other devices consuming bandwidth or switching your router to a less congested channel. You can use apps like WiFi Analyzer on a smartphone.
Why can't the TV see the computer via Wi-Fi?
Most often, the problem is that the devices are on different subnets (for example, guest mode is enabled on the router) or the antivirus is blocking detection. Check the network type in Windows—it should be "Private" and not "Public."
Is it possible to play games over a wireless connection?
For quiet strategy or card games, yes. For fast-paced shooters, input lag of 50-100 ms will be critical. In such cases, it's better to use an HDMI cable or a wired connection if the TV supports Ethernet.
Does broadcasting affect internet speed?
When using Miracast or AirPlay, data is transferred locally between devices via the router, without using your ISP's data plan. However, the Wi-Fi channel will be busy, which may reduce file download speeds on other devices.