If your home Wi-Fi doesn’t cover all the rooms or the signal weakens in the far reaches of the apartment, converting the Xiaomi router to a repeater (network repeater) may be the best solution. Unlike buying additional equipment, this method allows you to use an existing device to expand the coverage area without unnecessary costs. However, not all Xiaomi models support the repeater function out of the box - some require alternative firmware or manual adjustment.
In this article, we will discuss three official ways to activate the repeater mode (for supported models), and also consider workarounds for devices where the function is hidden or absent. You will learn how to connect your router to the main network correctly, what settings optimize performance, and how to avoid typical errors that lead to a speed drop or an unstable connection. Particular attention will be paid to model compatibility – not all Xiaomi routers can work in repeater mode with other brands (for example, TP-Link or other brands). ASUS).
Which Xiaomi models support the repeater mode?
The functionality of the Wi-Fi repeater depends on the firmware and hardware capabilities of the router. Xiaomi officially declares support for Repeater (or Range Extender) mode only for the following series:
- 🔹 Xiaomi Mi Router 4A (All modifications including the Gigabit Edition)
- 🔹 Xiaomi Mi Router 4C (requires firmware not less than 2.28.15)
- 🔹 Xiaomi Mi Router 4Q (5GHz frequency-restricted)
- 🔹 Xiaomi AIoT Router AX3600 (Full support for Dual Band)
- 🔹 Redmi Router AX5 and AX6 (Only in the "Bridge" mode for Mesh-networks)
Important: Xiaomi routers older than 2018 (such as Mi Router 3 or Mini Router) do not have a built-in repeater function. They will require custom firmware installation (such as OpenWRT or Padavan), which voids warranty and requires technical skills. Also note that some models (such as Mi Router 4 without an alphabetic index) support repeater mode only for networks of the same manufacturer – when connecting to routers of other brands, there may be problems with authorization.
| Model router | Support for 2.4 GHz | Support for 5 GHz | Required firmware | Features |
|---|---|---|---|---|
| Mi Router 4A | ✅ Yes. | ❌ No. | Anybody. | Max, speed 300 Mbps. |
| Mi Router 4C | ✅ Yes. | ❌ No. | From 2.28.15 | Low energy consumption |
| AIoT Router AX3600 | ✅ Yes. | ✅ Yes. | Anybody. | Support for Mesh and OFDMA |
| Redmi Router AX6 | ✅ Yes. | ✅ Yes. | From 1.1.18 | Only in Bridge mode. |
⚠️ Note: Xiaomi routers with firmware for the Chinese market (denoted by the cn suffix in the file name) can block the repeater mode for networks with encryption WPA3. Before setting up, check the encryption type of the main router in the Wireless Mode section. → Security settings.
Preparation for setup: what to do before activating the repeater
Before you convert your Xiaomi router to a repeater, follow a few critical steps, and neglecting them can lead to loss of access to the web interface or unstable network performance:
- Update the firmware. Outdated versions often contain bugs that interfere with the correct operation in repeater mode. Check the current firmware in the Update → Update section.
- Write down the main router settings. You'll need to: 📝 Name of the network (SSID) password 📝 Type of encryption (WPA2-PSK, WPA3 etc.) 📝 Channel and channel width (e.g. Channel 6, 20 MHz)
Reset the router-repiter settings.
Reset
It is also recommended to place the router-repiter in the zone of stable signal of the main network (at least 50% of the level). If the signal is weak, the repeater will not amplify, but worsen the speed due to constant reconnections. The optimal distance between routers is 5-10 meters in a city apartment.
Method 1: Set up a repeater via a web interface (for supported models)
This is the easiest method available for most modern Xiaomi routers, and the instructions are suitable for the Mi Router 4A/4C/4Q and AIoT AX3600 models:
- Connect to the router-repeater. 🔌 Connect it to PC/laptop by cable (port) LAN) Or connect to your Wi-Fi (default network: Xiaomi_XXXX, password).
- Open the web interface. 🌐 Enter in the browser 192.168.31.1 or miwifi.com. log in (login and password by default is often admin).
- Activate the repeater mode. 🔄 Go to Additional Settings → Mode of work → Repeater (Repeater). 🔍 Click Network Search, select your main network and enter its password. ⚙️ In the Repeater Wi-Fi settings section, specify a new network name (for example, Mi_Repeater_5G) or leave the same as the main router (for seamless roaming).
Save and restart.
- 💾 Click Save and wait for the reboot (2-3 minutes).
Wi-Fi indicator burns blue|The router is displayed in the list of devices of the main network|Internet speed has not dropped by more than 30%|You can connect to the repeater network from your phone-->
If after saving the Xiaomi router does not connect to the main network, check:
- 🔌 Is the encryption type the same (for example, WPA2-PSK both-device).
- 📶 Is it not used on the main router "hidden" SSID" (Turn off this option).
- 🔄 Does the main router block the connection of new devices by MAC-address (check in Filtration) MAC).
⚠️ Note: In repeater mode, Xiaomi loses access to certain features, such as Parental Control or Guest Network. If these options are critical, consider setting up the bridge mode (WDS), which retains more opportunities.
Method 2: Bridge mode (WDS) for models without repeater support
If your Xiaomi router does not have a built-in Repeater option (such as Mi Router 3 or Redmi AC2100), you can use WDS Bridge Mode. It is less convenient (requires manual channel indication), but allows you to expand the network without losing functionality.
- Connect to the router and open the web interface, similar to the first method.
- Turn it off. DHCP-server. 🔧 Go to Local Network. → DHCP-The server and shut it down. IP-address.
- Set up. WDS. 🔗 In the section Wireless mode → Settings WDS press Add. 🔍 Select the main network from the list, specify its password and type of encryption. ⚙️ Manually specify the channel and channel width identical to the main router (for example, Channel 11, 20 MHz).
Change. IP-router.
- 📌 To the Local Network. → Settings LAN change IP to the free subnet of the main router (for example, if the main one has 192.168.1.1, ask 192.168.1.2).
- Save and restart.
The main difference WDS from the repetitive regime – preservation of the original SSID. That is, devices will automatically switch between routers without having to connect to a new network. However, this method does not support 5 GHz on most Xiaomi models (except for Xiaomi models). AX-series).
Why can WDS work slower than a repeater?
Method 3: Alternative firmware (for advanced users)
If your Xiaomi model doesn’t support either a repeater or WDS (like the Mi Router Mini or Mi Wi-Fi Nano), you’ll still have custom firmware.
- 🛠️ OpenWRT is a universal firmware with repeater support, but requires manual tuning through SSH.
- 🛠️ Padavan – optimized for Xiaomi routers, has a graphical interface with the option of Universal Repeater.
The installation process shall include:
- Download firmware for your model from the official website (for example, OpenWRT).
- Activate Developer Mode in the original firmware (via telnet or SSH).
- Download firmware via a web interface or TFTP.
⚠️ Attention: Installing custom firmware will void the warranty and may result in the device "bricking" (complete loss of performance). → Backup.
💡
If the router does not boot after OpenWRT firmware, try restoring it via UART mode (you will need a soldering iron and a USB-TTL adapter).
Optimizing the work of the repeater: how to avoid a drop in speed
Even after successfully configuring the Xiaomi router in repeater mode, users often experience a 40-60% slowdown due to the nature of data transmission through an intermediate device, to minimize losses:
- 📡 Separate 2.4 and 5 GHz networks on models with Dual-Band support (for example, AX3600) set the repeater to 5 GHz only – this frequency is less loaded.
Also check QoS settings on the main router. If traffic prioritization is enabled (for example, for VoIP or Games), the repeater can receive limited bandwidth. MAC-Repeater address in the list of priority devices.
| Problem. | Possible cause | Decision |
|---|---|---|
| Repiter often shuts down. | Weak signal of the main network | Move the repeater closer to the router or use a signal amplifier |
| Low speed at 5GHz | Automatic selection of channel width | Set a fixed width of 40 MHz or 80 MHz |
| Devices are not connected | Conflict IP-address | Disable DHCP on the repeater or change its IP |
💡
The ideal configuration for maximum speed: the main router on the channel 1 (2.4 GHz), the repeater on the channel 11 (2.4 GHz) or 36 (5 GHz) with a fixed width of 40 MHz.
Frequent mistakes and their solutions
When setting up a repeater on Xiaomi routers, users face typical problems.
- 🚫 "Can't connect to the repeater network. Check if the main router's Filter is on. MAC-Addresses or Customer isolation. Make sure that the repeater and main router match the Region (configure Wireless Mode) → Additionally).
- 🔌 "The repeater doesn't save the settings after the reboot. This is typical of routers with damaged memory. NVRAM. Try resetting to factory and reconfiguring. If the problem is repeated, update the firmware through TFTP (Instructions for your model look for 4PDA).
- 📉 "Repetitor speed is 10 times lower. Check if it's used on the main router. WPA3 — Some Xiaomi models don't work well with this standard in repeater mode. WPA2-PSK. If the router is dual-band, try turning off 2.4GHz on the repeater, leaving only 5GHz.
To diagnose problems, use the Wi-Fi Analyzer (Android) or NetSpot (Windows/macOS) utility to help determine the load of channels and signal levels at different points in the apartment. If the repeater signal is weak (below -70 dBm), try changing its location or antenna orientation.