Modern technology makes it possible to create entertainment systems without tangling your room with a tangled mess of wires. Connecting your computer to your TV via Wi-Fi gives you access to a wealth of multimedia content right on the big screen. This is convenient for watching high-definition movies, working on presentations, or sharing photos with friends.
Wireless connection eliminates the need to run long HDMI cables throughout your apartment. However, to enjoy a stable, lag-free picture, you need to configure your equipment correctly. In this guide, we'll cover all the current methods for synchronizing devices on a single local network.
To successfully connect, you will need a working router that supports the standards 802.11n or 802.11ac. Also make sure that your Smart TV Your router and computer are within a strong signal range. If your router is dual-band, it's better to use the 5 GHz network for heavy video streaming.
Technical requirements and equipment preparation
Before you begin setting up, you need to make sure your equipment is compatible. Most modern TVs are compatible. Smart TV Support wireless data transfer. The computer must also be equipped with a Wi-Fi module, either a built-in or external USB adapter.
It's critical that both devices are on the same subnet. This means both the PC and TV must be connected to the same router. If you have a complex network with multiple access points, ensure they don't isolate clients from each other.
- 📺 TV with Smart TV support (Samsung, LG, Sony, Android TV).
- 💻 A computer or laptop with a Windows, macOS, or Linux operating system.
- 📡 A router with support for Wi-Fi 4 (N) and higher standards for stable speed.
- 🔌 A user account with administrator rights on the PC.
Check your TV's software version. Manufacturers regularly release updates that improve the stability of network modules. Go to your TV's settings menu and find the section Support → Software Update.
Setting up Windows screen projection (Miracast)
The easiest way to broadcast an image from a computer to a TV in a Windows environment is to use technology MiracastThis standard allows screen duplication without installing additional software if the TV supports the Wireless Display function.
First, make sure your computer's Wi-Fi adapter is turned on. Press the following key combination: Win + K on the keyboard. The "Connect" panel will open on the right, where the system will begin searching for available devices.
If your TV isn't found, check its settings. Find the button on your remote control. Screen Share, Smart View Or go to the signal sources menu and select "Connect to a wireless display." Once the device is detected, click on it.
⚠️ Please note: When using Miracast, a slight delay in the mouse cursor may occur. This is normal for the wireless protocol, but may be disruptive during fast-paced games.
Once connected, you can select the operating mode. Click Win + Pto choose between screen mirroring or desktop extension. In the latter case, the TV becomes a second monitor onto which you can drag windows.
☑️ Check before connecting Miracast
Using DLNA for multimedia
If your goal is not to duplicate your desktop, but to watch movies or listen to music, the technology DLNA It's perfect. It allows the TV to see your computer's media folders as network storage.
In Windows, this feature is called "Streaming Media." Open Control Panel, find the "Streaming Media" section, and enable it. The system will prompt you to select devices that are allowed to access the content.
On your TV, launch the "Media Player," "Gallery," or similar app. Select your computer from the list of sources. You can now open files directly from your PC's hard drive.
| Parameter | Default value | Recommended value |
|---|---|---|
| Protocol | DLNA / UPnP | DLNA / UPnP |
| Access port | Dynamic | Static IP |
| Video formats | MP4, MKV, AVI | MP4 (H.264) |
| Permission | Auto | 1920x1080 or 4K |
The advantage of DLNA is that playback control (pause, rewind) is controlled by the TV remote. The computer, in this case, acts only as a server and does not require constant user intervention.
Broadcasting via Google Chrome browser
Owners of TVs based on Android TV Android devices with built-in Chromecast can use the Google Chrome browser for casting. This method is convenient if you want to show the contents of a specific tab or the entire desktop.
Open the Chrome browser on your computer. Click the three dots in the upper right corner and select "Cast." The browser will search for available devices on the network.
In the window that appears, you can select a source: a browser tab, the entire screen, or a specific file. Clicking the "Sources" button opens a menu for selecting the content type.
This method is especially useful for displaying web pages or videos from sites that don't have built-in Smart TV support. Image quality depends on the speed of your local network.
⚠️ Note: When casting an entire browser tab, audio may be delayed. For movies, it's best to use built-in apps on your TV.
Connecting macOS and Apple TV (AirPlay)
Apple ecosystem users can take advantage of the technology AirPlayIf you have an Apple TV or a TV that supports AirPlay 2 (many Samsung, LG, and Sony models), setup takes seconds.
On a Mac, click the Control Center icon in the menu bar and select Mirror. Select your TV from the list. If prompted, enter the code displayed on the TV screen.
For Windows PC owners with an Apple TV, you can use third-party AirPlay emulator programs such as AirParrot or LonelyScreenThey create a virtual receiver on the computer.
AirPlay provides high stability and minimal latency, especially on 5 GHz networks. It's a great option for presentations or viewing photo albums in high quality.
What should I do if AirPlay doesn't detect my TV?
Make sure the "AP Isolation" feature is disabled on your router. Also, check that your firewall isn't blocking UDP ports 5353 and 7000-7100, which are required for the Bonjour protocol to function.
Solution and troubleshooting
The first connection doesn't always go smoothly. Users often encounter devices that simply can't see each other on the network. The most common causes are different subnets or antivirus blocking.
If you have a connection but the video is lagging, try lowering the streaming resolution or moving your computer closer to the router. Interference from microwave ovens can also affect the Wi-Fi signal.
- 🔄 Restart the router and both connected devices.
- 🛡️ Check your Windows Firewall settings (allow private networks).
- 📶 Make sure both devices are connected to 2.4 GHz or 5 GHz Wi-Fi (do not mix bands if your router cannot combine them into one network).
In some cases, resetting network settings can help. On Windows, this can be done via the command line by entering the command netsh winsock resetAfter this, be sure to restart your computer.
Why doesn't the TV see the computer in the list of devices?
Most often, the problem lies in the Windows network profile. If the network is marked as "Public," the system is blocking discovery. Go to the network settings and change the profile to "Private." Also, make sure the "Media Server" service is running.
Can you play games on TV via Wi-Fi?
Yes, but with limitations. For fast-paced shooters or racing games, input lag can be noticeable and uncomfortable. For turn-based strategy games, card games, or viewing interactive content, latency of 50-100 ms is perfectly acceptable.
Does connecting a TV affect internet speed?
Local streaming (DLNA, Miracast) doesn't use the internet; traffic is handled within the router. However, if you watch online videos through the TV app, the channel is shared. If you have a low plan, speeds on other devices may drop.