Modern technologies allow you to transform your living room into a full-fledged multimedia center, eliminating unnecessary wires. Wireless connection A connection between a computer and a TV opens access to a huge amount of content: from high-definition movies to photos from a personal archive. Users are increasingly abandoning HDMI cables in favor of more flexible network solutions that ensure stable data transmission without visual noise.
There are several basic protocols and methods for establishing such communication. The choice of a specific method depends on operating system Your PC, TV firmware version, and home router specifications are all important factors. In this article, we'll cover the most effective methods in detail, including standard Windows features and third-party applications.
Before you begin setup, you need to ensure both devices are on the same local network. This is a basic requirement for most streaming technologies to work. The computer and TV must be connected to the same router., otherwise they simply won’t “see” each other in the network environment.
Wireless streaming technologies: DLNA, Miracast, and Chromecast
Understanding the differences between protocols will help you choose the best option for your needs. Digital Living Network Alliance (DLNA) — is a standard that allows you to share media files (photos, videos, music) between devices. It's ideal if you simply want to play a movie stored on your hard drive without duplicating the entire screen.
Unlike DLNA, the technology Miracast (implemented in Windows as "Projection") creates a direct wireless connection for transmitting the screen image in real time. This allows you to show presentations, play games, or use a browser on a larger screen. Image quality depends on the power of the Wi-Fi adapter and the distance to the router.
- 📺 DLNA — transfer of media files only, control via TV remote control.
- 💻 Miracast/WiDi — a full copy of the computer screen, minimal delay.
- 🌐 Chromecast built-in — broadcasting browser tabs or content from applications via Google services.
Some modern TVs support the technology Apple AirPlay 2, which allows you to stream content from Apple devices, but Windows 10/11 PCs can also use third-party emulators to work with this protocol. It's important to note that older TV models may not support hardware decoding of modern codecs when streaming.
⚠️ Attention: Using Miracast significantly increases the load on your computer's processor and Wi-Fi module. If you plan to stream heavy 4K videos, make sure your router supports the 5 GHz band, otherwise you may experience choppy images.
Preparing equipment and checking the network
A successful connection directly depends on the stability of your local network. Before beginning setup, run basic diagnostics. Make sure Wi-Fi is enabled on both devices and they are authorized on the network. If your router is dual-band, it's best to have both your PC and TV operating on the same band (e.g., both on 5 GHz), although this isn't always critical for DLNA.
Check your network profile settings in Windows. For device discovery to work correctly, the network must be set to "Private," not "Public." For security reasons, the system blocks your computer from being visible to other devices when using a public profile.
☑️ Checking connection readiness
It's also worth updating the drivers for your computer's wireless adapter. Manufacturers often release patches that improve compatibility with multimedia protocols. Go to device Manager, find your network adapter and check for updates through the context menu.
| Parameter | Recommended value | Impact on broadcast |
|---|---|---|
| Wi-Fi frequency | 5 GHz | High speed, less interference |
| Security protocol | WPA2/WPA3 | Data protection, compatibility |
| Router channel | Auto or free | Connection stability |
| Network profile | Private network | Opening access to media |
Setting up DLNA using built-in Windows tools
The easiest way to stream videos or photos is to use the built-in Windows media server. This feature requires no additional software and works out of the box on most modern TVs from Samsung, LG, Sony, and other brands.
To start, open Settings (keys Win + I) and go to the "Apps" section. Find "Media Playback" or "Streaming Media Settings." Here, you need to enable streaming and give your media library a descriptive name so it's easy to find on your TV.
Once the service is activated, Windows will automatically scan the network. On the TV screen, in the list of signal sources (button Input or Source) A new item with your computer's name should appear. Once you open it, you'll see the standard folder structure: Videos, Music, Pictures.
What to do if the TV doesn't see the folders?
If your TV displays your computer but the folders are empty, check your access permissions. In the Windows streaming menu, click "Configure" and make sure your TV is set to "Allowed." Also, check if your antivirus software is blocking network communication.
It's worth noting that DLNA doesn't allow desktop control. You can only select files to play. If you need to share a Word document or website, this method isn't suitable. However, for watching a family video or photo shoot on a big screen, it's the most energy-efficient option.
Screen sharing via Miracast and Projection
If you want to display your entire desktop, use Miracast technology. In Windows 10 and 11, this feature is integrated into the system and can be accessed with a keyboard shortcut. Win + KThis opens the Connection sidebar, where it begins searching for available displays.
You also need to enable signal reception on the TV. This feature may be called different things in the Smart TV menu: "Screen Share" (LG), "Smart View" (Samsung), or "Screen Projection" (Sony/Android TV). After enabling standby mode on the TV, the computer should detect it in the list.
⚠️ Attention: Smart TV interfaces are frequently updated. Menu item names may differ from those described in the instructions. If you can't find the projection function, search your TV menu for "Screen," "Cast," or "Mirror."
When connecting for the first time, a confirmation message may appear on the TV screen. Use the remote control to allow the connection. Once the connection is established, the image from your PC monitor will appear on the TV. You can choose the operating mode: screen mirroring or desktop extension (using the TV as a second monitor).
- 🖥️ Duplication - the same image on PC and TV.
- 📐 Extension — The TV becomes a second monitor, you can drag windows.
- 🔌 Second screen only — the image on the PC goes out, and remains only on the TV.
Miracast transmission quality depends heavily on the airwaves. If you notice audio and video desync, try lowering the output resolution or moving your computer closer to the router. This method is less suitable for gaming due to input lag, but it's perfectly suitable for web browsing or word processing.
Using Google Chrome to Stream
The Google Chrome browser has a built-in Chromecast feature, which allows you to cast the contents of a tab or the entire screen to Chromecast-enabled TVs or Android TVs. This universal method works on virtually any operating system running the browser.
Open the Chrome browser on your computer. Click the three dots in the upper right corner and select "Cast." In the window that appears, select the source: "Tab," "Full Screen," or "File." Then click your TV's name in the list of devices.
This method is especially convenient if you need to show a presentation directly from the browser or launch a video from a website that doesn't have a built-in "Cast to TV" button. Chrome will automatically encode the video stream and send it to the TV.
To enable audio, click the tab name in the streaming menu and check "Stream audio." This will allow you to watch movies from websites directly through your browser on the big screen.
Third-party streaming programs and apps
Built-in tools don't always work perfectly, especially if you have specific hardware. In such cases, third-party solutions come to the rescue. One of the most popular is the app LetsView or AirServerThey provide more flexible quality settings and support more protocols.
For Apple ecosystem owners using Windows PCs, the program will be an excellent solution AirServer or ReflectorThey emulate an AirPlay receiver, allowing you to stream content not only from an iPhone but also from a Windows PC to Apple TVs or compatible Smart TVs.
If you are an avid gamer, pay attention to the application Steam LinkIt allows you to stream games from your computer to your TV over a local network with minimal latency. To do this, you need to install the Steam client on your PC and the Steam Link app on your TV (available in the Samsung and Android TV app stores).
⚠️ Attention: Third-party programs often have limitations in their free versions (watermarks, session time limits). Before installing, please read the license agreement and trial period features.
Using specialized software also allows you to configure your computer to be controlled using your TV's remote control, turning it into a fully-fledged media center. This is especially useful for older TVs that don't have their own smart features but are connected to a PC.
Common problems and solutions
Even with proper configuration, glitches can occur. The most common issue is "Device not found." This is usually resolved by rebooting the router and both devices. Network services may freeze, and a simple restart clears the cache and refreshes IP addresses.
If the video is lagging or breaking up into blocks, the issue is with your bandwidth. Try disabling other bandwidth-consuming devices (torrents, downloads). Also, make sure there are no thick concrete walls or strong sources of interference (microwaves, baby monitors) between the router and the receiver.
In some cases, your antivirus or Windows Firewall may be blocking the connection. Check your security settings and add your home network to the trusted list. Sometimes, temporarily disabling the firewall to diagnose the problem helps.
Why can't the TV see the computer via Wi-Fi?
Most often, the devices are on different subnets (for example, one on a guest Wi-Fi network, the other on the main one). Network discovery may also be disabled in Windows, or the TV's firmware may be out of date.
Is it possible to connect a computer to a TV without a router?
Yes, using Wi-Fi Direct technology. In this case, the computer connects directly to the TV, creating its own access point. Speeds will be lower, and the PC won't be able to access the internet via this connection, but file streaming is possible.
How to improve picture quality over a wireless connection?
Use an 802.11ac (Wi-Fi 5) or 802.11ax (Wi-Fi 6) router in the 5 GHz band. Make sure the Wi-Fi channels aren't congested by neighboring networks, and position your devices within line of sight of the router.
Does connecting a TV affect internet speed?
Using DLNA or local streaming doesn't consume internet bandwidth; traffic is handled within the local network. However, when streaming online videos (YouTube, Netflix) from a PC to a TV, internet speed is used just as when watching on a computer.