How to connect a computer to a TV via Wi-Fi: all the methods + troubleshooting

Connecting your computer to your TV wirelessly via Wi-Fi opens up a ton of possibilities, from watching movies on the big screen to playing games with minimal lag. However, many users are confused by the terms (Miracast, DLNA, AirPlay) and technical nuances—why the image is lagging, why there's no sound, or why the TV simply doesn't recognize the PC. In this article, we'll look into all current connection methods (including hidden Windows 11 features), we'll compare them in terms of speed, quality, and compatibility, and provide troubleshooting checklists.

It is important to understand that the choice of method depends not only on the TV model (Samsung, LG, Sony Bravia), but also on the Windows/macOS version, the router type, and even the Wi-Fi frequency range (2.4 or 5 GHz). For example, only Miracast with low latency support, and for viewing photos it will be enough DLNAWe won't limit ourselves to standard instructions - the article contains unique stream optimization data for 4K HDR and bypassing restrictions on old TVs.

If you've already tried connecting and got a "black screen" or "no signal," don't close the article. The last section contains 12 specific solutions for common errors, including driver issues Intel Wireless, firewall settings and IP address conflicts on the local network.

1. Preparation: What to check before connecting

Before attempting to connect your PC and TV, make sure your network and devices meet the minimum requirements. Errors at this stage cause 80% of connection problems.

Wi-Fi network requirements:

• 📶 5 GHz band — required for 4K video streaming or gaming (2.4 GHz won't provide the necessary speed). Exception: DLNA for photos/music it can also work on 2.4 GHz.
• 🔄 Router with MU-MIMO support (For example, ASUS RT-AX88U or TP-Link Archer AX6000) will significantly reduce delays during broadcasting.
• 🔒 Lack of a "guest" network - some TVs (Samsung QLED 2020+) do not see devices in isolated networks.

Device requirements:

⚠️ Attention: If your TV was released before 2018, check support Miracast on the menu Settings → Network → Screen Mirroring. Some models (Samsung J-series) require a firmware update to work with Windows 11.

2. Method 1: Miracast (Screen Mirroring) - a universal method for Windows

Miracast — is a wireless screen sharing standard built into Windows 10/11 and most modern TVs. It allows you to mirror or extend your PC screen on your TV. without additional programs, but with quality limitations (maximum 1080p@60fps on most devices).

How to connect:

1. On TV: Turn on the mode Screen Mirroring (on Samsung — Smart View, on LG — Screen Share).
2. On PC: Click Win + K → Select your TV from the list. If it's not there, check your drivers (see the "Troubleshooting" section).
3. Confirm the connection on TV (you may be asked to enter a PIN code).

⚠️ Attention: On laptops with Intel Wireless-AC 9560 and newer Miracast Only works when connected to a 5 GHz network. If your router does not support 5 GHz, use DLNA or Steam Link.

Pros and cons of Miracast:

• ✅ No delay when working with office programs.
• ✅ Supported by 90% of Smart TVs (except some models) Philips until 2019).
• ❌ Maximum resolution is 1080p (even if the TV supports 4K).
• ❌ Sound may be transmitted with artifacts if the Wi-Fi signal is weak.

3. Method 2: DLNA - for media files without screen mirroring

DLNA (Digital Living Network Alliance) is a protocol for streaming media files (video, music, photos) from a PC to a TV. without duplicating the desktopSuitable for watching movies, but not for gaming or working with documents.

How to set up DLNA on Windows:

1. Open Settings → Network & Internet → Sharing options.
2. Turn on Media sharing and select folders with files.
3. Launch the app on your TV. Media player (or SmartShare on LG) and select your PC from the list of devices.

Supported formats:

⚠️ Attention: If the TV does not see the files, check that they are not in folders OneDrive or Google Drive — DLNA Works only with local files.

How to speed up video transfer via DLNA?

Use the program Serviio instead of a standard Windows server. It supports on-the-fly transcoding and optimizes the bitrate for your network.

4. Method 3: Steam Link – for low-latency gamers

If you want to play on TV from your computer, Steam Link — the best choice. This technology uses direct video stream encoding from a PC, which reduces the delay to 20-30 ms (versus 100+ ms for Miracast).

Requirements:

• 🎮 Computer with a video card NVIDIA GTX 10xx+ or AMD RX 4xx+.
• 📦 Installed Steam on both devices (on TV - app Steam Link).
• 🔌 Router with support QoS (traffic prioritization for games).

Step-by-step setup:

1. Install Steam Link to TV from the app store (LG Content Store, Google Play For Android TV).
2. On PC: Open Steam → Settings → Remote Play → turn on Host.
3. Connect the gamepad to your TV (via Bluetooth or USB).
4. Launch Steam Link on TV and select your PC.

Optimized for 4K:

• In the settings Steam Link select Quality: Premium And Resolution: 4K.
• IN NVIDIA Control Panel install DSR for higher resolution rendering.
• Use an Ethernet cable for your PC (even if your TV is connected via Wi-Fi).

5. Method 4: AirPlay for Apple owners (Mac + Apple TV)

If you have MacBook And Apple TV (or Smart TV with support AirPlay 2, For example, Samsung QLED 2021+), this method will provide maximum transmission quality (including Dolby Vision and Atmos).

How to connect:

1. Make sure both devices are on the same Wi-Fi network (preferably 5GHz).
2. On Mac: open Control Center → Screen Mirror and select Apple TV.
3. On TV: Confirm the connection (a code may be required).

AirPlay Features:

• ✅ Support 4K HDR And Dolby Atmos (on Apple TV 4K).
• ✅ Minimal delay when watching videos (better than Miracast).
• ❌ Does not work with Windows without additional programs (for example, 5KPlayer).
• ❌ Requires an Apple device (not suitable for Android TV without Apple TV).

⚠️ Attention: During the broadcast 4K HDR through AirPlay make sure in settings Apple TV mode is on Dynamic range (Settings → Video and Audio → Match Content). Otherwise the colors will be dull.

6. Method 5: Applications from manufacturers (Smart View, LG TV Plus)

Big brands (Samsung, LG, Sony) offer their own solutions for connecting a PC to a TV. These often work more reliably. Miracast, but require installation of additional software.

Application overview:

How to use Samsung Smart View:

1. Download the app from Microsoft Store and install it.
2. Launch Smart View on your PC and select your TV from the list.
3. Turn on the mode DeX to use TV as a monitor with multitasking support.

⚠️ Attention: Apps from manufacturers often block streaming of protected content (Netflix, Disney+). To view them, use HDMI or Google Cast.

7. Troubleshooting: 12 Mistakes and How to Fix Them

If the connection is not working, use this table to diagnose:

Problem	Possible cause	Solution
The TV doesn't see the PC	No support Miracast on TV or PC	Update your TV firmware or use Steam Link
The image is lagging	Weak Wi-Fi signal or network congestion	Switch to 5 GHz, disconnect other devices from the network
No sound	The wrong audio output is selected on the PC	In the Sound Control Panel, select Output device: TV
Black screen after connection	Driver conflict Intel/AMD/NVIDIA	Update your video card and Wi-Fi adapter drivers.
Lag in games	High CPU load when encoding	Enable hardware encoding in settings Steam Link

Advanced diagnostics:

• 🔧 Checking drivers: Open device Manager → Network adapters → update driver for Wireless adapter.
• 📡 Wi-Fi Speed ​​Test: Use Wi-Fi Analyzer (Android) or netsh wlan show interfaces V CMD to check the speed.
• 🔒 Firewall: Temporarily disable Windows Defender or add an exception for the broadcast application.

⚠️ Attention: If Windows stops working after an update Miracast, roll back your Wi-Fi adapter driver to the previous version. In the latest updates Intel And Qualcomm There are bugs with support WFD (Wireless Display).

8. FAQ: Frequently asked questions about connecting a PC to a TV via Wi-Fi

Is it possible to stream Netflix/YouTube from PC to TV via Wi-Fi?

Yes, but with some reservations:

• Miracast And AirPlay allow you to duplicate the screen with any content, but there may be lags.
• DLNA does not support protected content (Netflix, Disney+ block broadcasting).
• Best option: use Google Cast (embedded in YouTube/Netflix) or Smart View in mode DeX.

Why does 4K video lag when connecting via Miracast?

Miracast limited by resolution by default 1080p@60fpsFor 4K:

1. Update your Wi-Fi adapter driver to the latest version.
2. In Windows Display Settings, select 100% scale (not 125% or 150%).
3. Use Steam Link or NVIDIA Moonlight for 4K.

How to connect a PC to an old TV without Smart TV?

Options for TV without Wi-Fi:

• 📦 Buy Android TV Box (For example, Xiaomi Mi Box S) and connect it to the TV via HDMI.
• 🔌 Use Wi-Fi adapter with HDMI (For example, Microsoft Wireless Display Adapter).
• 💻 Connect your TV to the router via cable and your PC via Wi-Fi, then use Steam Link.

Is it possible to play online games (CS2, Fortnite) via Wi-Fi on TV?

Technically yes, but:

• ⚠️ Miracast gives a lag of 100+ ms - unacceptable for shooters.
• ✅ Steam Link or NVIDIA Moonlight reduce latency to 20-30 ms (with good Wi-Fi).
• 🎮 For competitive games it is better to use HDMI cable or Powerline adapters (Internet transmission via electrical wiring).

Why is the sound delayed compared to the video?

Reasons and solutions:

• Wi-Fi overload: Disconnect other devices from the network or switch to 5 GHz.
• Codecs: In your PC sound settings, select Format: 16 bit, 48 kHz (not 24 bit).
• Application: IN Steam Link turn on Audio Sync.