How to Stream from Your Computer to Your TV via Wi-Fi: A Complete Guide

Wireless screen sharing from a computer to a TV via Wi-Fi has become a standard feature of modern devices, but many users still encounter issues: the image stutters, the sound lags, and the connection constantly drops. The causes lie not only in the settings but also in the selection of an inappropriate data transfer protocol.

In this article we will look at all current methods Wi-Fi screen sharing - from built-in tools Windows 11/10 to specialized programs like Steam Link or MoonlightYou will learn which method provides minimal latency for games (up to 10 ms with proper settings), how to bypass the limitations of older TVs, and why even a powerful router doesn't guarantee stable streaming without additional settings.

Important: If your TV was released before 2018, it most likely does not support Miracast or Google CastIn this case, you will need an external adapter (for example, Amazon Fire TV Stick or Xiaomi Mi TV Stick) or alternative methods like DLNA.

1. Network Preparation: Why Your Wi-Fi Could Be a Bottleneck

Before setting up a broadcast, please check three key parameters your network:

• 📶 Wi-Fi frequency: to broadcast video in 4K be sure to use a range 5 GHz. Range 2.4 GHz only suitable for 720p with noticeable artifacts.
• 📊 Bandwidth: minimum speed for Full HD (1080p) — 25 Mbps, For 4K HDR — 50+ MbpsYou can check it through speedtest.net.
• 🔄 Channel load: If you have 10+ devices running simultaneously in your home, the stream will lag. Disable background refresh on other devices.

Pay special attention router placementIf the TV and computer are in different rooms, and there are concrete or brick walls between them, the signal 5 GHz may weaken by 70-80%. In this case:

• Use Mesh system (For example, TP-Link Deco or ASUS ZenWiFi) to expand coverage.
• Connect your TV to your router via Powerline adapter (data transmission via electrical wiring) if cable laying is not possible.

⚠️ Attention: If your router only supports the standard Wi-Fi 4 (802.11n), maximum speed in the range 5 GHz will not exceed 300 Mbps - this is enough for 1080p, But 4K will slow down. For a stable broadcast you need Wi-Fi 5 (802.11ac) or newer.

2. Miracast: a built-in method for Windows without additional programs

Miracast — is a wireless broadcasting standard supported by all modern versions Windows (starting from 8.1) and most TVs after 2018. Its main advantage is lack of internet dependence: devices are connected directly (peer-to-peer), which reduces latency to 30-70 ms.

To start broadcasting:

1. Activate the mode on your TV Screen Mirroring (on Samsung — Smart View, on LG — Screen Share).
2. On your computer, click Win + K (or open Settings → System → Project to this PC).
3. Select your TV from the list of available devices.

If your TV does not appear in the list, check:

• 🔧 Does yours support video adapter Miracast (list of compatible chips: Intel HD Graphics 4000+, NVIDIA GTX 6xx+, AMD Radeon HD 7xxx+).
• 🔄 Are your video card drivers updated (via GeForce Experience, AMD Adrenalin or Intel Driver & Support Assistant).
• 📱 Is the TV in standby mode? Wi-Fi Direct (sometimes called WiDi).

⚠️ Attention: On laptops with hybrid graphics (Intel + NVIDIA/AMD) Miracast can only work through the integrated video core IntelTo force the use of a discrete card, switch to it in the graphics control panel.

TV and PC are connected to the same 5 GHz network|

Video adapter drivers updated|

Screen Mirroring is enabled on the TV|

VPN and firewalls are disabled|

Having trouble with Miracast? Try the alternatives below.

3. Google Cast (Chromecast): a universal method for any device

If your TV supports Google Cast (built in Android TV or via a prefix Chromecast), this method will be the most reliable for broadcasting browser, video and presentationsUnlike Miracast, it uses cloud processing, allowing streaming even from low-powered PCs.

Instructions for Windows/macOS:

1. Install a browser Google Chrome or Microsoft Edge (latest versions).
2. Open your browser menu → Broadcast... → select your TV.
3. Select source:
   • Tab - broadcasts the entire browser (suitable for YouTube, Netflix).
   • File — for local videos (.mp4, .mkv).
   • Desktop — full screen broadcast (latency ~100 ms).

Advantages Google Cast:

• 🎮 Support 4K HDR on Chromecast Ultra And Chromecast with Google TV.
• 🔗 Ability to broadcast from Android/iOS on the same TV.
• 📱 Low load on the PC - video processing occurs on the set-top box.

Flaws:

• ❌ Delay until 200 ms when broadcasting your desktop (not suitable for gaming).
• ❌ Requires a stable internet connection (unlike Miracast).

4. Steam Link: The Best Choice for Gamers

If you need minimal delay for Wi-Fi gaming, Steam Link — the optimal solution. The program uses proprietary video compression algorithms and supports:

• 🎮 Controllers Xbox, PlayStation, Steam Controller.
• 🖥️ Resolution up to 4K/60fps (at network speed 50+ Mbps).
• 🔊 Audio transmission in format 5.1 or 7.1.

How to set up:

1. Install Steam on PC and Steam Link on TV (available in Google Play For Android TV or as a separate application for Samsung/LG).
2. Connect the gamepad to the TV via Bluetooth.
3. In the settings Steam turn on on PC Remote Play (Settings → Remote Play).
4. Launch the game on your PC and select it from the list on your TV.

To reduce latency:

• In the settings Steam Link select Speed ​​priority instead of Quality Priority.
• Activate Hardware encoding (required) NVIDIA NVENC or AMD AMF).
• Close background programs that consume network bandwidth (Torrent, Discord, Cloud backups).

⚠️ Attention: If the game is slow, but the ping is in Steam Link shows <30 msThe problem isn't with the network, but with PC performance. Try lowering the game's graphics settings or closing other applications.

How to play without a gamepad?

If you don't have a controller, you can use your smartphone as a virtual gamepad via the app. Steam Link (available for Android And iOS). Connect your phone and TV to the same network, launch the app and select the mode Touch ControlThe latency will be higher (~50 ms), but for strategy games or simulators this is sufficient.

5. DLNA: Stream media files without screen mirroring

If you don't need to duplicate full screen, but only play videos, music or photos on TV, DLNA will be the simplest solution. This protocol is supported by all Smart TV and does not require installation of additional programs on the TV.

Instructions for Windows:

1. Turn on DLNA server:
   • Open Control Panel → Network and Internet → Network and Sharing Center → Advanced Sharing Settings.
   • Turn on Media sharing and add folders with files.

On your TV, open the app Media player (or SmartShare on LG, AllShare on Samsung).

Select your computer from the list of devices and play the file.

For more flexible settings, use the following programs:

• 🖥️ Plex Media Server — creates a complete media library with covers and subtitles.
• 🎵 Kodi — supports almost all video and audio formats.
• 📁 Serviio - optimized for broadcasting on Samsung And LG.

Restrictions DLNA:

• ❌ No screencasting - only individual files.
• ❌ Not all formats are supported by the TV (for example, .mkv With 10-bit may not be playable).
• ❌ Delay when rewinding (~1-2 seconds).

6. Alternative programs: Moonlight, Parsec, Rainway

If the built-in methods are not satisfactory in terms of quality or delay, pay attention to specialized programs for cloud gaming and screencasting. They use advanced codecs (NVIDIA NVENC, AMD VCE) and protocols to minimize lags.

Moonlight — the best choice for video card owners NVIDIAThe program uses technology NVIDIA GameStream, which allows you to stream games with a delay <20 ms even over Wi-Fi. To set it up:

1. Install GeForce Experience on PC and turn it on GameStream in the settings.
2. Download Moonlight on TV (available for Android TV And Samsung Tizen).
3. Connect to your PC by entering its IP address (you can find it out using the command ipconfig V CMD).

Parsec Suitable for any video cards and supports multiplayer (two players can play on one PC). However, it requires a stable Internet (not a local network), since the servers Parsec act as intermediaries.

7. Troubleshooting: Why the broadcast lags or doesn't connect

If the image is slow, choppy, or not transmitted at all, check:

• 🔌 Router power supply: some models (for example, TP-Link Archer C6) reduce performance when powered by USB. Plug it into a power outlet.
• 📡 Wi-Fi channel: If there are many networks nearby, switch to a free channel through 192.168.1.1 (or your router's address).
• 🔧 Power saving settings: On laptops, turn off the mode Energy saving for Wi-Fi adapter in Device Manager.
• 🛡️ Firewall/Antivirus: Disable them temporarily and check if they are blocking the broadcast.

Common mistakes and their solutions:

⚠️ Attention: On TVs Samsung series J (2015-2017) and LG series LH support may be lacking 5 GHz Wi-FiIn this case, for broadcasting Full HD will have to be used LAN adapter or Powerline.

FAQ: Frequently asked questions about PC to TV streaming

Is it possible to stream my PC screen to a TV without Wi-Fi?

Yes, there are three alternatives:

1. HDMI cable: The most stable solution without lag, but requires a physical connection.
2. Powerline adapters: data transmission over electrical wiring (speed up to 1 Gbps).
3. Wi-Fi Direct: Direct connection of a PC to a TV without a router (not available on all models).

For games it is better to use HDMI or Powerline, as they provide minimal delay (<10 ms).

Why is there no sound when streaming via Miracast?

This issue is typical for PCs with multiple audio devices. Solutions:

• IN Sound options (Win + I → System → Sound) select the output device NVIDIA Virtual Audio or Intel Display Audio.
• Update your sound card drivers via Realtek Audio Console or the manufacturer's website.
• If you use Bluetooth headphones, disable them - Miracast may conflict with them.

How to cast your PC screen to your TV Samsung older than 2016?

Old models Samsung (series J, H, F) do not support Miracast And Google CastOptions:

1. Prefix Chromecast or Fire TV Stick: Connects to HDMI-port and adds support for modern protocols.
2. DLNA: via built-in AllShare (for media files only).
3. Cable HDMI: if the TV and PC are close together.

For games it is better to choose Chromecast with Google TV and broadcast through Steam Link.

What is the minimum Wi-Fi speed required for streaming? 4K?

Depends on the method:

• Miracast/Steam Link: 50+ Mbps (recommended) 100+ Mbps For 4K/60fps).
• Google Cast: 30+ Mbps (but the quality will be worse due to compression).
• DLNA: 25 Mbps (for file playback only, not screen).

Check your speed through speedtest.net on TV (for example, through a browser Android TV), as the speed on a PC may vary.

Is it possible to stream your PC screen to your TV via iPhone?

Live broadcast from Windows/macOS on iPhone, and then there is no TV, but there are workarounds:

1. Use iPhone How intermediary:
   • Cast your PC screen to iPhone through Chrome Remote Desktop or TeamViewer.
   • Then with iPhone Cast your screen to your TV via AirPlay (if TV supports it).

Install on TV Android TV-remote access application (for example, Splashtop) and connect to PC.

The delay with this method will be 200-500 ms, which is not suitable for gaming, but is suitable for presentations.