How to connect a smartphone to a TV via a Wi-Fi router: 5 proven methods

Wirelessly streaming your smartphone screen to a big screen TV via your home router is a convenient way to show photos, videos, or even play mobile games on Smart TVBut many people encounter problems: the image lags, the sound disappears, or the devices simply don't recognize each other. In this article, we'll cover all the working connection methods, from standard functions. Miracast And DLNA to proprietary technologies Samsung Smart View And Apple AirPlay.

The main advantage of connecting via a router (rather than directly via Wi-Fi Direct) is a stable signal and the ability to control streaming from multiple devices simultaneously. For example, you can start a movie on your TV from your smartphone and then continue watching from your tablet without interrupting playback. However, for this to work, the router must support the standard. 802.11ac (or newer) and have sufficient bandwidth - otherwise the picture will "stutter".

We tested all methods on TVs Samsung QLED 2023, LG OLED C2, Sony Bravia X90K and budget models Xiaomi Mi TV, as well as on smartphones with Android 12-14 And iOS 16-17If your equipment is older, some features may be missing—we'll let you know.

1. Preparing the router: what settings to check before connecting

Before connecting your smartphone and TV, make sure your router meets the minimum requirements. Key parameters:

• 🔄 Dual-band Wi-Fi (2.4 GHz + 5 GHz). For video streaming in 4K be sure to use the network 5 GHz - it is less congested and provides greater speed.
• 📶 Connection speed not lower 300 MbpsIf the router outputs less, the image will lag.
• 🔒 Disabled "Guest Mode"The devices must be on the same local network.
• 🔄 AP Isolation mode enabled (if there is) - it is necessary turn off, otherwise the devices will not see each other.

How to check the settings:

1. Open the router's web interface (usually at 192.168.0.1 or 192.168.1.1).
2. Go to the section Wireless network (Wi-Fi) or Wireless Settings.
3. Make sure the mode is enabled 802.11ac/n (not only 802.11b/g).
4. Check that DHCP server active - it automatically assigns IP addresses to devices.

⚠️ Attention: If you have a router from a provider (for example, Rostelecom or Beeline), some settings may be locked. In this case, try using bridge mode or connect your own router.

The router supports 5 GHz|Network speed ≥300 Mbps|Guest mode disabled|AP Isolation disabled|DHCP server active-->

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

Miracast - is a wireless screen transmission standard that is supported by almost all modern Android-smartphones and Smart TVIt works without the internet, but requires both devices to be connected to the same Wi-Fi network via a router.

How to turn on on TV:

• 📺 Press the button on the remote control Source (or Input) → select Screen Mirroring (on Samsung), Miracast (on LG/Sony) or Wireless (Wi-Fi Direct) (on Xiaomi).
• 🔍 If the item is missing, check your settings: Settings → Network → Screen Mirroring.

How to connect a smartphone:

1. On Android open Settings → Connected devices → Screen sharing (or Screen Cast).
2. From the list of available devices, select the name of your TV.
3. Confirm the connection on both devices.

⚠️ Attention: On some TVs Samsung 2018–2019 release function Screen Mirroring works only when connected to the network 2.4 GHzIf you can't connect, try switching your router to this mode.

3. Method 2: DLNA – for viewing photos, videos, and music

DLNA (Digital Living Network Alliance) is a protocol for transferring media files (photos, videos, music) over a local network. Unlike MiracastIt doesn't mirror your smartphone's screen, but only streams selected files. It's suitable for watching movies or listening to music without lag.

How to set up:

1. Turn on the DLNA server on your TV:
   • 📺 Samsung: Settings → General → External devices → Playback devices.
   • 📺 LG: Settings → Network → DLNA.
   • 📺 Sony: Settings → Network → Home Network → Media Server.

Install a DLNA app on your smartphone, for example:

• 🤖 Android: BubbleUPnP, LocalCast.
• 🍎 iPhone: 8player, nPlayer.
• In the app, select the file and click “Play on” → select your TV.

Advantages of DLNA:

• ✅ No sound delays (unlike Miracast).
• ✅ Works even on old TVs (2012–2015).
• ✅ You can stream files from NAS or computer.

Flaws:

• ❌ Doesn't transmit the entire screen (only media files).
• ❌ Not all video formats are supported (for example, MKV With DTS- sound may not be reproduced).

What video formats does DLNA support?

Most TVs play via DLNA:

- Video: MP4 (H.264), MKV (H.264), AVI (Xvid)

- Audio: MP3, AAC, WAV

- Photo: JPEG, PNG

But there may be problems with:

- Video in HEVC (H.265) or VP9

- Sound DTS, Dolby TrueHD

- Higher resolution 1080p on budget TV models.

4. Method 3: Apple AirPlay for iPhone and iPad

If you have iPhone or iPad, and the TV supports AirPlay 2, you can cast your screen without additional apps. This method works more reliably. Miracast and supports 4K HDR.

How to check TV compatibility:

• 📺 Samsung: 2018 and newer models (series QLED, The Frame, Serif).
• 📺 LG: All OLED And NanoCell With webOS 4.0+.
• 📺 Sony: series Bravia 2019 and newer.
• 📺 Xiaomi: only models with Google TV (For example, Mi TV Q2).

Connection instructions:

1. Make sure that iPhone and the TV are connected to the same Wi-Fi network.
2. Enable AirPlay on your TV:
   • 📺 Samsung: Settings → General → Apple AirPlay → turn on.
   • 📺 LG: Settings → Network → AirPlay.

On iPhone swipe down from the top right corner (or up on older models) → tap Screen Mirroring → select your TV.

⚠️ Attention: On some TVs Samsung AirPlay requires a firmware update to the latest version. If the feature doesn't appear, check for updates in Settings → Support → Software Update.

5. Method 4: Google Cast (Chromecast) - for Android and iOS

Google Cast — is a technology that allows you to send content from your phone to your TV via a router. It's built into many Smart TV (based on Android TV or Google TV) and devices ChromecastUnlike Miracast, here the entire screen is not duplicated, but only the selected video or application is broadcast (for example, YouTube, Netflix).

How to use:

1. Make sure your TV and smartphone are on the same Wi-Fi network.
2. Check if the TV is turned on. Google Cast:
   • 📺 Android TV/Google TV: Settings → Devices & Networks → Google Cast.
   • 📺 If there is no built-in support, connect Chromecast to the HDMI port.

On your smartphone, open a supported app (e.g. YouTube) → click the icon Cast (📤) → select TV.

Apps that support Google Cast:

• 🎬 YouTube, Netflix, Disney+, Twitch.
• 🎵 Spotify, Google Music, SoundCloud.
• 📷 Google Photos, VLC.

Important: Google Cast does not stream DRM-protected content (such as movies from Apple TV+ or Amazon Prime Video) on TVs without Widevine L1 certification. If the video does not play, check if your device supports it. Smart TV this standard.

6. Method 5: Branded applications from TV manufacturers

Many brands are developing their own wireless streaming apps. These are often more stable than standard protocols, but require additional software.

Popular apps:

Example of connection via Samsung SmartThings:

1. Install the application SmartThings on your smartphone.
2. Register or log in to your account Samsung.
3. Click Add a device → select a TV from the list.
4. In the device menu, tap Screencasting.

⚠️ Attention: Branded apps often require you to create an account with the manufacturer. If you don't want to register, use Miracast or DLNA.

7. Troubleshooting: What to do if the connection isn't working

If your smartphone can't see your TV or the stream keeps dropping out, check the following:

• 🔌 Reboot your router and devicesSometimes simply turning off the router's power for 30 seconds helps.
• 📶 Change the Wi-Fi channel. In the router settings (192.168.0.1) select a channel 5 GHz with less workload (for example, 36, 40, 44, 48).
• 🔒 Disable VPN on your smartphone. Some VPN services block local communication between devices.
• 📱 Update the firmware TV and smartphone. Outdated software may not support new protocols.

Typical errors and their causes:

How to enable developer mode on Android to change codecs?

1. Go to Settings → About phone.

2. Press 7 times on Build number.

3. Return to Settings → System → Developer Options.

4. Find the option Disable absolute volume level or Bluetooth audio codec (to change audio formats).

8. Comparison of methods: which one to choose

Each of the methods discussed has its pros and cons. Here's a brief comparison for different tasks:

If you need maximum quality (for example, for 4K HDR), it is better to use AirPlay 2 (For iPhone) or Miracast with a 5GHz router (For Android). For simple viewing of photos or videos it is suitable DLNA - it is less demanding on network speed.

FAQ: Frequently Asked Questions

Is it possible to connect a smartphone to a TV without a router?

Yes, but with limitations. For this, use Wi-Fi Direct (on Android) or Peer-to-Peer AirPlay (on iPhone for TVs with Apple TV). However, in this case, the TV will not have internet access, and connection stability issues may occur.

Why does the image slow down or tear?

The reasons may be different:

• 📶 Weak Wi-Fi signal - try moving the router closer to the TV.
• 🔄 Congested network - turn off other devices or change the channel.
• 📱 Outdated firmware - update the software on your smartphone and TV.
• 🎮 The resolution is too high - reduce the broadcast quality in the settings.

How to mirror your iPhone screen to a TV without Apple TV?

If you have a TV that supports AirPlay 2 (For example, Samsung QLED or LG OLED), connection is possible without additional devices. If the TV does not support AirPlay, buy Chromecast with Google TV or Amazon Fire TV Stick - they can receive broadcasts from iPhone through apps like ApowerMirror.

Can I play mobile games on my TV via Wi-Fi?

Technically yes, but it will be input lag (lag), which is critical for fast-paced games. For a comfortable gaming experience, it's best to use:

• 🎮 Gamepad with support Bluetooth (For example, Xbox Controller or DualSense).
• 🔌 HDMI cable (for example, via an adapter USB-C to HDMI).
• 🖥️ Cloud gaming (Xbox Cloud Gaming, GeForce NOW) - broadcast the game on TV.

Why don't some videos play via DLNA?

This is due to restrictions codecs And DRMTVs often do not support:

• 🎥 Video in HEVC (H.265) with higher resolution 1080p.
• 🔊 Sound DTS-HD or Dolby Atmos.
• 🔒 Protected content (Netflix, Apple TV+).

Solution: Convert the video to MP4 (H.264 + AAC) or use Plex Media Server with transcoding.