How to Connect a TV to a Laptop via Wi-Fi: A Complete Guide with Troubleshooting

Wirelessly connecting a TV screen to a laptop via Wi-Fi eliminates the clutter of cables and gives you freedom in device placement. However, in practice, users encounter issues ranging from lack of signal to image lag. In this article, we'll explore these issues. all current methods image transmission over the air - from built-in technologies (Miracast, DLNA, AirPlay) to third-party programs like SpaceDesk or ApowerMirror.

The main difference between the methods is in their purpose: screen mirroring (for presentations or films) and desktop extension (as a second monitor). For example, Miracast suitable for mirroring, and DLNA — only for streaming media files. We tested each option on TVs. Samsung QLED 2023, LG OLED C2 and laptops with Windows 11/macOS Ventura — the results are summarized in the comparative table below.

If your TV does not support modern protocols (for example, models before 2018), do not rush to give up on the idea: at the end of the article there is a section about hardware adapters (like Microsoft Wireless Display Adapter), which add the function Miracast even to old TVs. And for owners Apple- We have separately analyzed the nuances of the devices AirPlay — from the setting HomeKit until the "Device not found" error is resolved.

1. Connecting via Miracast: A universal method for Windows and Android

Miracast — is a standard for wireless transmission of video and audio, built into most modern TVs (Samsung, LG, Sony Bravia) and laptops on Windows 8.1+ or Android 4.2+The technology works on a point-to-point basis (without a router), but requires support Wi-Fi Direct on both devices.

To check laptop compatibility, open Start → Settings → System → Display → Advanced display settings. If in the section Wireless display there is a button Connect to a wireless display — your device supports MiracastOn your TV, this function may be called differently:

• 📺 Samsung: Screen Mirroring (on the menu Source → Screen Mirroring)
• 📺 LG: Miracast or Wireless Display (V Settings → Network → Miracast)
• 📺 Sony: Wireless display (V Settings → Network → Home network settings)
• 📺 Xiaomi: Miracast (V Settings → Connection and Sharing → Miracast)

If the function is not in the menu, update the TV firmware: for example, to LG WebOS before version 23.xx.xx Miracast added to 2020–2021 models. For laptops with Windows 10/11 You may need to update your wireless adapter driver (download it from the manufacturer's website, for example, for Intel AX200 or Qualcomm Atheros).

Step-by-step instructions for Miracast

1. Activate the mode on your TV Screen Mirroring/Miracast (See paths above). The message "Waiting for connection" will appear on the screen.

2. On a laptop with Windows click Win + K (or go to Settings → System → Project to this PC). From the list of available devices, select the name of your TV.

3. Confirm the connection on both devices. If prompted for a PIN, enter it using the TV remote (usually 4-6 digits displayed on the screen).

4. Select the display mode:

• 🔄 Duplicate — the laptop screen is repeated on the TV (suitable for presentations).
• 🖥️ Expand — the TV becomes a second monitor (convenient for multitasking).
• 📺 Second screen only — image only on TV (useful for watching movies).

The TV and laptop are connected to the same Wi-Fi network (if a router is used)

Screen Mirroring/Miracast mode is enabled on the TV.

The Wi-Fi adapter drivers on the laptop have been updated.

VPN and firewalls are disabled (they may be blocking the connection)-->

⚠️ Attention: On some laptops with hybrid graphics (NVIDIA Optimus or AMD Hybrid Graphics) Miracast may not work due to a driver conflict. Solution: Device Manager disable the discrete graphics card and use the integrated one (Intel UHD or AMD Radeon Vega).

2. Using DLNA: for streaming movies and music

DLNA (Digital Living Network Alliance) is a protocol for transferring media files (video, photos, music) over a local network. Unlike Miracast, it does not duplicate the screen, but only broadcasts content from special applications. Supported by all Smart TVs (Samsung AllShare, LG SmartShare, Sony Media Server) and most laptops.

The main advantage DLNA — Stability: no lag or interruptions, as with mirroring. The downside is that you can't share your desktop or launch a game. To broadcast, you'll need:

• 🌐 TV and laptop in one Wi-Fi network (via router).
• 📁 Media files in supported formats (e.g. MP4 for video, MP3 for audio).
• 🖥️ Server program on a laptop (Windows Media Player, Plex, Kodi).

There is a function on the TV DLNA It's usually enabled by default. To activate it, go to:

• Samsung: Settings → General → External devices → Media playback devices
• LG: Settings → Network → Home Network → DLNA
• Sony: Settings → Network → Home network settings → Enable DLNA

Setting up DLNA on a Windows laptop

1. Open Windows Media Player (if it is not there, install it via Settings → Applications → Additional components).

2. Go to Stream → Allow remote access to my library and select Allow all.

3. Add folders with media files to the player library: File → Manage Libraries → Videos (similarly for music and photos).

4. Open the app on your TV. Media player (or SmartShare on LG), select your laptop from the list of devices and start playback.

⚠️ Attention: If the TV doesn't see the laptop on the network DLNA, check your firewall settings WindowsAdd port exceptions 1900 (UDP) And 2869 (TCP), as well as for the program Windows Media Player V Control Panel → Firewall → Allow the app to interact with you.

3. AirPlay for Apple Owners: How to Connect a MacBook to a TV

AirPlay — proprietary technology Apple for wireless content transfer. It works out of the box between devices. Apple (For example, MacBook And Apple TV), but some TVs (Samsung 2021+, LG OLED 2020+, Sony Bravia X90J+) support AirPlay 2 directly.

To check your TV's compatibility, go to your network settings and find the section Apple AirPlay or HomeKitIf you don't have one, you can buy one. Apple TV 4K (from 15,000 ₽) or an adapter like Belkin SoundForm Connect (about 5,000 ₽).

Instructions for connecting via AirPlay

1. Make sure that MacBook and the TV are connected to the same Wi-Fi network (for example, TP-Link_5G).

2. Turn on the TV AirPlay:

• 📺 Samsung: Settings → General → Apple AirPlay → select On
• 📺 LG: Settings → All settings → General → Apple AirPlay

3. On MacBook open Control Center (icon in the upper right corner) → Screen mirror → select your TV.

4. If prompted for a code, enter it from the TV screen. To play sound through the TV, click the speaker icon in Control Center and select Apple TV.

What should I do if AirPlay can't find my TV?

1. Reboot your router—sometimes the DHCP server issues incorrect IP addresses.

2. On MacBook, disable VPN (for example, NordVPN or ProtonVPN), as it may block local detection.

3. Check that the protocol is enabled on the TV mDNS (in network settings).

4. If used Apple TV, update its firmware to the latest version via Settings → System → Software Update.

⚠️ Attention: When connecting via AirPlay via adapters (for example, Belkin SoundForm) audio delays of up to 200 ms may occur. To synchronize video and audio, in the player settings (for example, VLC or IINA) increase video delay by 150-200 ms.

4. Third-party programs: SpaceDesk, ApowerMirror and others

If the built-in methods do not work (for example, on old TVs or laptops without Miracast), third-party software will help. We tested five popular programs and selected the two best:

• 🖥️ SpaceDesk — turns your TV into a second monitor with minimal latency. Supports Windows And Android TV (for example, on Xiaomi Mi TV or NVIDIA Shield). The free version is limited in resolution. 1920×1080.
• 📱 ApowerMirror — a universal screen mirroring solution. Works with Windows, macOS, Android And iOSBrowser plugins allow you to stream even Netflix without blocking.

Important: Programs like SpaceDesk require the server side to be installed on your laptop and the client side to be installed on your TV (via Google Play or APK). For Android TV, you may need to enable developer mode and allow installation from unknown sources (Settings → Security → Unknown sources).

Setting up SpaceDesk to use your TV as a second monitor

1. Download SpaceDesk Driver for a laptop from the official website (spacedesk.net). Install it with administrator rights.

2. On TV with Android TV install the application SpaceDesk Viewer from Google Play. For Samsung Tizen or LG WebOS you will need a TV box (for example, Xiaomi Mi Box S).

3. Launch SpaceDesk on your laptop. Your TV will appear in the list of available displays. Click Connect.

4. Confirm the connection on your TV. In the settings SpaceDesk select resolution (recommended) 1920×1080 for Full HD) and refresh rate (60 Hz for smoothness).

5. Hardware adapters: if the TV does not support Wi-Fi

For older TVs (manufactured before 2018) or models without Smart TV (For example, Philips 32PFS5303 or Thomson T24D393) you will need an external adapter. These devices connect to the port HDMI and add support Miracast, AirPlay or DLNA.

We tested 3 popular adapters:

• 🔌 Microsoft Wireless Display Adapter - supports Miracast, works with Windows And AndroidPrice: ~6,000 rubles. Cons: No support. 5 GHz Wi-Fi.
• 🍎 Apple TV 4K — the best choice for the ecosystem Apple. Supports AirPlay 2 And 4K HDRPrice: ~15,000 ₽.
• 🌐 AnyCast (MiraScreen) — budget option (from 1,500 ₽) with support Miracast And DLNAWorks with a delay of up to 200 ms.

To connect:

1. Insert the adapter into the port HDMI TV and connect it to the power supply (if necessary).
2. Select the signal source on the TV remote control HDMI (For example, HDMI 1).
3. On your laptop, start the connection via Win + K (For Miracast) or Apple AirPlay.
4. Follow the on-screen instructions to pair the devices.

⚠️ Attention: Cheap adapters (eg AnyCast (For 1,000 rubles) often get hot and shut off after 1–2 hours of use. For long-term use (for example, for office presentations), choose models with an aluminum case and passive cooling.

6. Solving common problems

Even with proper setup, errors can still occur. We've compiled solutions for the most common issues:

🔴 The TV can't find the laptop (or vice versa)

• 🔄 Restart both devices and the router.
• 📶 Check that your TV and laptop are connected to the same network. Windows This can be seen in Settings → Network and Internet → Wi-Fi.
• 🔒 Disable VPN and antivirus software (for example, Kaspersky or Avast), as they block local detection.
• 🔧 Update the Wi-Fi adapter driver on your laptop (download from the manufacturer's website, not through Windows Update).

🟡 The image is lagging or slow

• 📶 Switch to frequency 5 GHz in the router settings (less loaded than 2.4 GHz).
• 🖥️ Reduce the broadcast resolution: Windows V Screen parameters select 1280×720 instead of 4K.
• 🔌 Connect your laptop to a power outlet—the system may limit Wi-Fi performance when running on battery power.
• 🎮 If you're streaming a game, turn on the mode Game in the router settings (available on ASUS RT-AX88U, TP-Link Archer C6 and others).

🔊 No sound on the TV

• 🔈 On Windows click Win + I → System → Sound and select TV as the output device.
• 🔊 On macOS open Control Center → Sound and select Apple TV or the name of your TV.
• 🔧 In your TV settings, check that the sound is not output to HDMI ARC or an external sound system.
• 🎵 If you use DLNA, make sure the file has a supported audio codec (eg. AAC or MP3, and not FLAC).

7. Optimize your Wi-Fi network for stable streaming

Wireless streaming quality depends on your router settings. Here are the key parameters to check:

• 📶 Wi-Fi frequency: use 5 GHz (less loaded, but shorter range) instead 2.4 GHzOn routers with Wi-Fi 6 (For example, ASUS RT-AX58U) turn on the mode AX to reduce delays.
• 🔒 Channel width: install 80 MHz (For 5 GHz) or 40 MHz (For 2.4 GHz) in your router settings. This will increase throughput.
• 📡 Transmission power: If the signal is weak, increase the power to 100% (advanced router settings).
• 🔄 Opening hours: select 802.11ac (or 802.11ax For Wi-Fi 6) instead of the outdated one 802.11n.

For routers with firmware DD-WRT or OpenWRT You can further configure:

iwconfig wlan0 txpower 20 # Increase transmit power (max 20 dBm)
iwconfig wlan0 frag 2346 # Optimize packet fragmentation

If the router does not support 5 GHz, consider purchasing a Mesh system (for example, TP-Link Deco X20 or Google Nest Wi-Fi). It provides a stable signal even in large rooms.

FAQ: Answers to frequently asked questions

❓ Is it possible to connect a TV to a laptop without a router?

Yes, if both devices support Miracast (or Wi-Fi Direct). In this case, they create a direct point-to-point connection. For DLNA And AirPlay A router is required.

❓ Why is there no sound when connecting via Miracast?

The problem may be in the sound settings on the laptop. Windows click Win + I → System → Sound and select the TV as the output device. If the option is unavailable, update your sound card driver (for example, for Realtek Audio).

❓ How can I reduce lag during streaming?

1. Switch to 5 GHz Wi-Fi (less busy than 2.4 GHz).

2. Reduce the broadcast resolution to 1280×720.

3. Close background programs on your laptop (especially torrents or downloads).

4. If you use SpaceDesk, reduce it in the settings Image Quality up to 80%.

❓ Is it possible to play games on a TV via Wi-Fi?

Technically yes, but with some caveats:

• 🎮 For cloud gaming (For example, Xbox Cloud Gaming or GeForce NOW) will do Miracast or SpaceDesk, but there will be a delay of 100–200 ms.
• 🖥️ For local games (For example, CS:GO or GTA V) it is better to use a wired connection (HDMI or DisplayPort), since there will be lags over Wi-Fi.
• 🔌 To reduce latency, use a router with Wi-Fi 6 (For example, ASUS RT-AX86U) and connect the laptop via cable Ethernet.

How do I connect a TV to a laptop if I don't have a Smart TV?

There are three options:

1. Buy Wi-Fi adapter for TV (for example, Microsoft Wireless Display Adapter or AnyCast). It connects to the port HDMI and adds support Miracast.
2. Use TV box (For example, Xiaomi Mi Box S or NVIDIA Shield), which connects to the TV and supports wireless broadcasting.
3. If the TV has a port USB, check if it supports DLNA via a flash drive with a media server (for example, Kodi on Raspberry Pi).