Weak Wi-Fi on TV is a common problem, especially if the router is in another room and walls of concrete or brick absorb waves. 2/Pro/300Mbps or Xiaomi Router 4A Gigabit Edition in Repetitor mode solves this problem, but their connection to Smart TV Unlike smartphones or laptops, TVs often don’t support automatic reconnection to a stronger network, and some models (especially on Android) do. TV 9-11) You may “forget” your settings after the update.
In this article, we will analyze three working connection schemes (through repeater settings, manual input). SSID on TV and use of function WPS), We will also tell you how to avoid typical mistakes: from “no access to the Internet” to problems with video buffering in the Internet. 4K HDR. We will pay special attention to optimization for streaming services – Netflix, YouTube and Kion, where the stability of the connection is critical.
If your TV doesn’t see the Xiaomi amplifier after setting up, check first for two things: whether the 2.4 GHz mode on the repeater is on (many TVs don’t support 5 GHz) and whether the security standard is the same (for example, the same as the standard for the device, WPA2-PSK squat WEP). These options are often overlooked, although they solve 70% of connectivity problems.
1.What Xiaomi Wi-Fi amplifiers are suitable for TV
Not all Xiaomi repeaters work equally well with Smart TV. Basic selection criteria:
- 📶 Support for the standard 802.11n/ac — mandatory for streaming video in Full HD/4K. Models with 802.11b/g (For example, the old Mi Wi-Fi Repeater. 1) slug.
- 🔄 Dual-band mode (2.4 + 5 GHz – if the TV supports 5 GHz (e.g. Sony Bravia) X90J or LG OLED C2). Most budget TVs are only available for 2.4 GHz.
- 🔌 Ethernet port – useful for cable connection (e.g. Xiaomi Router) 4A Gigabit in repeater mode. This is relevant for Samsung. QLED, where Wi-Fi is often "slow down».
- 🛡️ Compatibility with WPA3 — Important for New TVs (2022)+ Many of the time, Xiaomi has only supported WPA2.
The table below compares popular models by key parameters:
| Model | Max, speed. | Ranges | Ethernet | Support for WPA3 | Price (2026) |
|---|---|---|---|---|---|
| Mi Wi-Fi Repeater 2 | 300 Mbps | 2.4 GHz | ❌ No. | ❌ No. | ~1 200 ₽ |
| Mi Wi-Fi Repeater Pro | 1200 Mbps | 2.4 + 5 GHz | ❌ No. | ✅ Yes. | ~2 500 ₽ |
| Xiaomi Router 4A Gigabit (repeater mode) | 1167 Mbps | 2.4 + 5 GHz | ✅ 1× Gigabit | ✅ Yes. | ~3 000 ₽ |
| Xiaomi AIoT Router AC2350 | 2350 Mbps | 2.4 + 5 GHz | ✅ 3× Gigabit | ✅ Yes. | ~5 000 ₽ |
For supported TVs 4K HDR (for example, Xiaomi TV A Pro 2023 or TCL C745) We recommend models with speeds from 1200 Mbps and support MU-MIMO — This will reduce the delays when viewing. Budget Mi Wi-Fi Repeater 2 is only suitable for Full HD-Content on small screens (up to 55 inches).
If your TV is older than 2018, check its specifications on the manufacturer's website. LG series UK6xxx Samsung MU6xxx 5 GHz is not supported, so buying a dual-band repeater is not worth it.
2. Preparation of Xiaomi amplifier to connect
Before setting up, follow three mandatory steps:
- Update the repeater firmware through the Mi Wi-Fi app (available for the Android/iOS). Older versions of the software may not work properly with modern TVs.
- Place the amplifier 5-8 meters from the router and 3-5 meters from the TV, the optimal location is halfway between them, but not in the “dead zone” (for example, behind a metal cabinet).
- Reset the repeater to factory settings if it has already been used. Press the Reset button for 10 seconds (some models need to use a paper clip).
The connection will require:
- 📱 Smartphone with Mi Wi-Fi (download to Google Play or App Store).
- 🔑 Password from the main Wi-Fi network (if you forgot, look at the sticker of the router).
- ⚡ Power supply near the amplifier installation site (do not use thin wire extension cords - they may cause interference).
Attention! If your router uses 160 MHz channel width at 5 GHz, when connecting the repeater, Xiaomi can automatically narrow it down to 80 MHz. This is normal and does not affect the speed for the TV, but can reduce the speed on other devices (for example, laptops).
Download the Mi Wi-Fi | app
Update the firmware of the router and repeater|
Write down the SSID and password of the main network |
Place the amplifier in the zone of the confident signal-->
3. Step-by-step setting up the amplifier via the Mi Wi-Fi app
The most reliable way is to use the official app.
- Connect the repeater to the socket. Wait for the indicator to flash orange (setting mode).
- Open the Mi Wi-Fi app and click "Add Device» → «Signal amplifier».
- Choose your main Wi-Fi network from the list. If you don't have one, check if the router's 2.4 GHz mode is on (many TVs don't see 5 GHz networks).
- Enter the password from the main network. the application will prompt you to set the name and password for the extended network (by default it will be the same as the main one, but with a suffix _EXT).
- Wait for the setup to be completed (it will take 1-2 minutes). The indicator on the repeater should light up in blue (successful connection).
If the app gives an error in step 3, “I couldn’t connect,” try:
- 🔄 Reboot the router and repeater.
- 📵 Temporarily disable 5 GHz on the router (in its settings).
- 🔑 Make sure the password is entered without spaces and in the correct register.
Some TVs (e.g. Samsung) Q60B) They don't connect to networks with a name longer than 16 characters _EXT, Rename it manually in the Mi Wi-Fi app settings (Network Management section»).
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If you have a dual-band repeater (such as Mi Wi-Fi Repeater Pro), link 2.4 GHz and 5 GHz to one router setting. SSID. This will allow the TV to automatically select the best signal.
4. Manually connect the TV to the Wi-Fi amplifier
After you set up the repeater, you need to connect the TV to it. The algorithm depends on the TV operating system.
For Android. TV (Xiaomi, Sony, Philips, Nvidia Shield)
- Open Settings → Network and Internet → Wi-Fi.
- Select a repeater network (for example, MiHome_EXT).
- Enter your password (if it is different from the main network).
- Confirm the connection. If there is an error "Receive" IP-Addresses, reboot the TV.
For Tizen (Samsung)
- Go to Settings. → General. → Network → Open network settings.
- Select “Wireless Network” and find the amplifier network.
- Enter your password. If the TV asks you to choose a security type, please enter it. WPA2-PSK (even if the router supports WPA3).
For webOS (LG)
- Press the Settings button on the remote → «Network» → «Wi-Fi connection».
- Select the repeater network. If it's not on the list, click "Update list."
- Once connected, check the speed in the Network Status section. If it is below 50 Mbps, move the amplifier closer to the router.
⚠️ Attention! On Xiaomi TVs with PatchWall (e.g. Mi) TV 4S) When you connect to the repeater, you may lose sound in some applications (e.g. YouTube). Solution: Select the audio settings «HDMI ARC» instead «TV Speaker».
If the TV is connected to the amplifier, but the Internet is not working:
- 🔧 Check if it's on. DHCP on the router (in settings) LAN).
- 📡 Make sure the repeater is not in mode. AP (Access Point – it should work as a Repeater.
- 🔄 Restart router, repeater and TV OK: router → repeater (after 1 minute) → TV (in 2 minutes).
What if the TV “forgets” the network after it’s turned off?
5. Connection through WPS: passcodeless
If your TV and repeater are supported WPS (Wi-Fi Protected Setup, you can connect without entering a password. This is true for Xiaomi models with a button WPS (For example, Mi Wi-Fi Repeater Pro).
Instructions:
- On the repeater, press the button. WPS 3 seconds - the indicator will start to blink.
- On TV: For Android TV: Settings → Network → Additionally. → WPS. For Samsung Tizen: Settings → Network → Wi-Fi → Button WPS. For LG webOS: Settings → Network → Connection WPS.
Wait 1-2 minutes. If the connection does not occur, repeat the process.
⚠️ Some TVs (e.g. Xiaomi Mi) TV Q1) supportive WPS In this case, use manual password entry or connect the amplifier over a cable (if there is an Ethernet port).
If WPS fails:
- 🔄 Make sure the router is on. WPS (safety-setting).
- ⏱️ Repeat the attempt within 2 minutes after pressing the button on the repeater - a timeout of the connection is small.
- 📵 Check if it's blocking. WPS antivirus or firewall on the router.
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WPS — The fastest way to connect, but less reliable than manual input, use it only for temporary connection or if the TV does not support other methods.
6. Optimizing the connection for streaming 4K and online gaming
Even after successful connection, there may be problems:
- 🎬 Video buffering on Netflix or YouTube (especially in the video) 4K HDR).
- 🎮 Lags in cloud games (such as Xbox Cloud Gaming or Xbox Cloud Gaming) NVIDIA GeForce NOW).
- 🔊 Interrupting sound when watching movies.
Solutions for each problem:
To buffer the video:
- 📶 In the repeater settings (Mi Wi-Fi) select High Performance Mode (if any).
- 🔧 On the router, turn on QoS (Quality of Service) and add MAC-TV address in priority traffic.
- 📥 Limit speed on other devices (e.g. phones while downloading files).
For online gaming:
- 🎮 Connect the TV to the repeater via Ethernet cable (if there is a port).
- 🔄 In router settings, select channel 1, 6 or 11 for 2.4 GHz – they are less susceptible to interference.
- 🛡️ Turn it off. IPv6 In the settings of the TV network (sometimes this reduces ping).
For interruptions of sound:
- 🔊 In the TV sound settings, select PCM Dolby Digital (if you have one).
- 📵 Make sure there are no interference sources near the repeater: microwaves, wireless headphones or Bluetooth speakers.
To check the real speed of the connection on the TV:
- Android. TV Install the Speedtest by Ookla app.
- Nana Samsung/LG Use the built-in network test in your settings.
Optimal indicators for 4K:
- 📶 25+ Mbit/s - for Full HD.
- 📶 50+ Mbit/s - for 4K SDR.
- 📶 100+ Mbit/s - for 4K HDR/Dolby Vision.
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If you have a Xiaomi Mi Box S or other console, connect it to the repeater via cable – this will give a more stable connection than Wi-Fi.
7. Solving typical problems
Let’s look at the most common mistakes and their solutions:
Problem 1: The TV doesn't see the amplifier network
Possible causes and solutions:
- 🔍 The net is hidden (SSID Solution: In the repeater settings (Mi Wi-Fi), turn on network visibility.
- 📵 The repeater is running in 5 GHz mode, and the TV supports only 2.4 GHz. Solution: in the router settings, turn off 5 GHz or set up a separate one. SSID for 2.4 GHz.
- 🔌 Power shortage. Solution: connect the repeater to another outlet (not through the extension cord).
Problem 2: Connection is available, but no Internet
What to do:
- 🔧 Check if it's on. DHCP If you don't, set the TV up to static. IP manually.
- 🔄 Restart the router and repeater in the correct order: first the router, in a minute the repeater.
- 📡 Make sure the repeater is connected to the router (the indicator should be blue, not orange).
Problem 3: Low speed or breakage of the connection
Optimization:
- 📶 Change the Wi-Fi channel on the router (for example, from Auto to 6).
- 🔧 Disable Band Steering (if enabled) – it may interfere with stability.
- 📵 Reduce the transmission power on the router (if the signal is too strong, the repeater can “muffle” itself).
⚠️ If you've got a repeater on your TV, you've lost access to the DLNA (For example, you can't see files from your computer, check the local network settings on your router, maybe client isolation is on (AP Isolation, which blocks device interaction.