Modern Samsung TVs are equipped with powerful multimedia platforms that transform your living room into a true cinema. However, the built-in memory of smart TVs is often insufficient to store huge libraries of high-definition movies. It's much more convenient to store your media library on your computer or laptop's hard drive and stream it wirelessly to the big screen.
Wireless data transfer over a local network opens up vast possibilities for content streaming. You won't have to fumble around with flash drives or find long HDMI cables to connect your laptop to the display. In this article, we'll explore all the current methods that will allow you to enjoy your favorite movies using the capabilities of your router and TV.
The main task is to establish a stable communication channel between devices on the same network. Samsung Smart TV technologies support various protocols, such as DLNA, Miracast and streaming standards. Understanding how they work will help avoid audio and video desynchronization and ensure maximum image quality.
Before you begin setting up, make sure your router and TV support the standard. Wi-Fi 5 (802.11ac) or newer for comfortable viewing of 4K content. Older standards may not handle large files, and the video will constantly buffer. We'll cover both built-in Windows operating system tools and third-party software for more flexible control.
Network requirements and equipment preparation
The foundation of high-quality streaming is a stable local network. High-resolution video streaming, especially 4K HDR, requires high bandwidth. The ideal option is to connect the TV to the router via Ethernet cable, even if the computer is connected via Wi-Fi, or using a dual-band router with both devices connected to the network 5 GHz.
Make sure both devices—the computer and the Samsung TV—are on the same subnet. Users often encounter an issue where the laptop is sharing internet via a mobile hotspot while the TV is connected to the home router. In this case, they "cannot see" each other because they are on different network segments. All devices must be connected to the same router.
- 📡 Check that both devices are connected to the same Wi-Fi network (SSID).
- ⚡ Make sure your Wi-Fi signal is strong enough (at least 2-3 bars).
- 🔒 Disable Client Isolation in your router settings if it is active.
- 💻 Make sure your network profile in Windows is set to "Private Network".
⚠️ Note: If your router is distributing two networks (2.4 GHz and 5 GHz) with the same name, try temporarily separating them or force both devices to connect to the 5 GHz band for better speed.
Data transfer speed directly impacts the ability to view large files without lag. If you plan to watch movies with a bitrate higher than 20 Mbps, using the older standard 802.11n This can lead to constant lag. In this case, it's worth considering using a wired connection for your TV.
Streaming via built-in Windows tools (DLNA)
The easiest way, which does not require installing additional software, is to use technology DLNAThe Windows operating system has a built-in media server that allows you to share folders containing video files with other devices on the network. Samsung TVs view the computer as an external media source.
To activate this feature, open "Media Streaming Settings" in the Windows Control Panel. In the window that opens, allow media access for your Samsung TV. The system may ask for confirmation, which you'll need to approve. After this, your "Videos," "Music," and "Pictures" folders will be available for viewing.
Press the button on the TV remote control Home or Smart Hub, then go to the "Multimedia" or "Source" section. Your computer should appear in the list of available devices. Selecting it will reveal the folder structure. Navigation is done using the remote, which may not always be convenient, but is perfectly acceptable for occasional viewing.
- 🖥️ Open "Streaming Media Settings" in Windows.
- ✅ Select your Samsung TV from the list of devices.
- 📂 Make sure the desired folders are marked as "Allowed".
- 📺 Launch the Multimedia app on your Samsung TV.
It's important to note that the built-in Windows server has limited transcoding functionality. If the video format isn't supported natively by the TV (for example, some codecs) HEVC (or specific audio tracks), playback may not start or may be silent. In such cases, it's best to use specialized software.
⚠️ Please note: The built-in Windows media server cannot transcode video on the fly. If the TV does not support the file format, the video will not play.
Using media servers (Plex, Kodi, Emby)
For users who value comfort and a beautiful interface, the best solution is to install a dedicated server. The leader in this field is the app PlexIt's installed on your computer, scanned, and created into a beautiful library with posters, descriptions, and cast lists. A corresponding app from the app store is installed on your Samsung TV.
The advantage of such systems is their transcoding capability. If your TV doesn't understand the video format, a server on your computer transcodes the stream on the fly into a compatible format. This requires a fairly powerful PC processor, but guarantees playback of virtually any file. Subtitles are also supported, and can be turned on and off directly from the remote.
Why is Plex better than the built-in Windows server?
Plex automatically downloads movie covers and descriptions, supports remote access (you can watch movies from your phone while away from home), and can transcode videos into a format your TV can understand if the original file isn't supported.
An alternative could be Kodi with UPnP/DLNA enabled or server Emby, which also has a native app for Tizen platforms (Samsung's operating system). Server installation requires initial setup, account creation, and adding file paths, but the results are worth it for your home media library.
- 📥 Download and install Plex Media Server on your computer.
- 🎬 Add movie folders to the server library.
- 📺 Find and install the Plex app on your Samsung TV.
- 🔗 Log in to the same account on both devices.
Please note that transcoding requires a stable and fast network. The transcoding process places additional strain on your Wi-Fi connection. If you experience buffering while using Plex, try lowering the stream quality in the app settings on your TV or switching to a wired connection.
Screen mirroring (Miracast and Wi-Fi)
If your goal is to display not just a file from a disk, but browser content or a program window that isn't a video file, screen mirroring is the way to go. In Windows 10 and 11, this feature is called "Connect to a wireless display." Samsung TVs support the protocol. Miracast, which is often labeled as Screen Mirroring.
To connect, press the key combination Win + K on your computer keyboard. A connection panel will appear on the right side of the screen. If the TV is turned on and waiting for a connection (this usually happens automatically if the devices are on the same network), it will appear in the list. Once selected, the pairing process will begin.
This method is convenient for displaying presentations, photos, or browsing the web on a large screen. However, it's less suitable for watching movies due to the potential for audio and video desynchronization and higher system resource consumption. The image is transmitted in real time, which creates a delay that's unnoticeable for slides but critical for movies.
Miracast transmission quality depends heavily on the power of the Wi-Fi adapter in your computer and TV. If the picture is choppy or has low resolution, check if power-saving mode is enabled on your network card. You should also try updating your computer's Wi-Fi module drivers to the latest version from the manufacturer's website.
Comparison of connection methods and their features
The choice of method depends on your specific needs and technical capabilities. Each method has its own strengths and weaknesses. Some users value the simplicity of "click and play," while others value image quality and support for all formats. Below is a comparison table to help you make your decision.
| Method | Quality | Convenience | Format support |
|---|---|---|---|
| DLNA (Windows) | Original | Average | Native TV only |
| Plex Server | Original/Transcode | High | Almost all (with transcode.) |
| Miracast | Compressed | High | Any (like on PC) |
| VLC Stream | Original | Low | All VLC formats |
If you're choosing between DLNA and Plex and have time for the initial setup, Plex is definitely the winner. Its beautiful interface and the ability to control it from your phone make watching movies a pleasure, not just a technical chore. DLNA is great for quickly transferring a single file without installing any extra software.
Screen mirroring (Miracast) should be used as a backup or for specific tasks unrelated to watching videos. This method is not recommended for regular use due to its less stable connection and the inability to turn off the laptop screen while watching.
Solution: Why the TV can't see the computer
The most common cause of problems is the incorrect network type in Windows. If the system considers your network "Public," it blocks device discovery for security reasons. You need to go to the network settings and change the profile to "Private." This immediately opens ports for local data exchange.
Another common blocker is an antivirus or firewall. They may detect attempts to stream video as suspicious activity. Try temporarily disabling the firewall and check if the TV appears in the list of devices. If the problem is resolved, add an exception rule for the media server.
- 🔍 Check if Network Discovery is enabled in Windows.
- 🛡️ Add firewall exceptions for the media server application.
- 🔄 Restart your router, computer, and TV (unplug them completely).
- 📶 Make sure that AP Isolation is not enabled on your router.
⚠️ Note: Samsung TV interfaces and Windows versions are updated regularly. The location of menu items may differ from what's described. If you can't find the option you need, use the search in your TV settings.
It's also worth checking for firmware updates for the TV itself. In the menu Support → Software Update You can check for new versions. Older versions of the software may contain bugs that prevent DLNA or Miracast protocols from working correctly.
☑️ Connection diagnostics
Frequently Asked Questions (FAQ)
Is it possible to stream a movie to a Samsung TV without the Internet, only via a local network?
Yes, you don't need an internet connection for this. The router simply needs to create a local area network (LAN) connecting the computer and TV. Even without an internet connection, file transfer via Wi-Fi will work if DLNA or a media server is configured.
Why does video lag when streaming over Wi-Fi, even though the internet is fast?
Internet speed and local network speed are two different things. Slowdowns can be caused by a weak Wi-Fi signal, interference from neighboring routers, the slow speed of the 2.4 GHz standard, or insufficient CPU power during transcoding. Try switching to 5 GHz.
Does Samsung support MKV format when streaming via DLNA?
Modern Samsung TVs typically support MKV files, but there may be issues with certain codecs within the container (for example, DTS audio or HEVC video). If the file doesn't open, use Plex, which transcodes the stream on the fly, or install the codec on your PC if you use a third-party player.
How to improve image quality when mirroring your screen?
Reduce your laptop's screen resolution to the TV's native resolution (e.g., 1920x1080). Close any bandwidth-consuming background apps. Move closer to the router or use a Wi-Fi adapter with an external antenna for your PC.
Do I need to buy a special adapter for Samsung TV?
No, if you have a modern Samsung Smart TV, all the necessary Wi-Fi modules and protocols are already built in. You don't need to buy any additional dongles or adapters; a router in your home is sufficient.