How to set up a Xiaomi router in Wi-Fi repeater mode: a complete guide with nuances

Is the Wi-Fi coverage area in your apartment poor? Are you faced with dead zones where the signal appears and disappears? There is a solution and it does not require the purchase of additional equipment. Xiaomi router (even budget models like the Mi Router) 4A or Redmi Router AX5) You can use it as a Wi-Fi repeater, amplifying the main network signal without any cables, and in this article, we'll look at how to do it right, which models support repeater mode, and why it's sometimes better to choose an alternative way to amplify the signal.

Before we get to the settings, it’s important to understand the key difference between a repeater and a regular router: In Wi-Fi Repeater mode, the device doesn’t create a new network, but relays the existing one, expanding its coverage. This means that all connected devices will be on the same network, ideal for a smart home or office, but there are pitfalls: when using a repeater, Internet speed can decrease by up to 50% due to double data relays. 4K-streaming, consider the option with a bridge WDS wired.

What Xiaomi routers support repeater mode

Not all Xiaomi router models can work as repeaters, but here is the latest list of devices that support Repeater Mode (for 2026):

• 🔹 Mi Router 4A (Gigabit Edition – budget version with support for Dual-Band, but limited speed in repeater mode (up to 300 Mbit / s at 2.4 GHz).
• 🔹 Mi Router 4C — Simple model without gigabit ports, suitable for small apartments.
• 🔹 Redmi Router AX5 — Best choice with Wi-Fi 6 support (AX1800), but requires firmware not less than 1.0.56.
• 🔹 Xiaomi Router AX3600 — flagship with quad-core processor, supports Mesh-networks (better to use instead of repeater).
• 🔹 Mi Router AC2100 — It's an outdated model, but it's still available. It only works at 2.4 GHz in the repeater mode.

If your model isn't on the list, check the documentation or update the firmware. 3G It does not officially support the repeater mode, but some users activate it through the SSH (Also note the firmware version: older versions (1.0.30 and below) may not have a feature or may not work smoothly.

Preparation for setting up: what to do before turning on the repeater mode

Before turning your Xiaomi router into a repeater, follow a few critical steps:

1. Check the compatibility of the main router. The repeater mode only works with networks where it is turned on. WPA2-PSK or WPA3. If your main router is using an outdated router WEP or WPA, First, update your settings.
2. Write down the main network data: name (SSID), Password and channel (e.g., 2.4GHz channel 6) This will be required when setting up.
3. Reset the Xiaomi router to factory settings if it has already been used. To do this, press the Reset button for 10 seconds (before the indicator blinks).
4. The router should be in the zone of confident reception of the main network (at least 70% of the signal level), but not too close to the main router (at least 3 meters).

Compatibility of the main router is checked|Recorded. SSID and the main network password|Reset Xiaomi to factory settings|The router is located in zone 70%+ signal-->

Pay special attention to the Wi-Fi channel. If the main router is running on automatic channel selection, fix it manually (for example, channel 1 or channel 11 at 2.4 GHz). Otherwise, the repeater may lose connection when changing the channel. Also turn off the Band Steering function on the main router (if there is one) - it interferes with the stable operation of the repeater.

⚠️ Note: If your main router uses a dynamic router IP (DHCP), a Xiaomi router in repeater mode does not receive the address automatically, you will have to manually assign a static IP This is true for models like the TP-Link Archer. C6 keenetic.

Step-by-step setting up the Xiaomi router in repeater mode

Now, the basic process, the instructions are for most models, but the interface may be slightly different.

1. Connect to the Xiaomi router via cable or through its Wi-Fi (the network will be called the “WEB” router). Xiaomi_XXXX, where XXXX — last-minute MAC-Open your browser and go to the address. 192.168.31.1 or miwifi.com.
2. Log in (admin by default). If the router is new, the system will prompt you to create a Xiaomi account — this is not necessary for repeater mode, you can skip.
3. Go to the Wi-Fi settings section: Additional settings → Mode of work → Repeater Mode (Repeater Mode)
4. Select a network to repeat. The router will scan the airwaves and show you a list of available networks. Find your main network, enter your password and click Connect.
5. Save the settings and wait for the reboot (it will take 1-2 minutes).

If the device is not connected to the network after setting up, check:

• 🔌 Is the password from the main network correctly entered (registration is important!).
• 📶 Signal level between main router and repeater (must be at least 70%).
• 🔄 Aren't they in conflict? IP-addresses (for example, if the main router is 192.168.0.x, Xiaomi is trying to use it. 192.168.31.x).

💡

If the repeater is periodically disabled after setting up, try manually setting the Wi-Fi channel on the main router (e.g., channel 6 instead of Auto), which eliminates the problem 80% of the time.

Common Problems and Their Solutions

Even with the right setup, there can be difficulties, and let's look at the typical scenarios and how to fix them.

One of the most insidious problems is the Wi-Fi loop, where the repeater starts relaying its own network, creating an infinite loop, which happens when the main router and repeater share the same network. SSID and a password, but different security settings to avoid a loop:

1. Turn off the repeter function WPS.
2. Make sure that the main router and repeater use the same security standard (WPA2-PSK or WPA3).
3. If possible, change it. SSID repeater (add suffix _EXT), to distinguish it from the main network.

⚠️ Note: If your Xiaomi router in repeater mode gives an error "I failed to connect to the network", check if the main router is not on the filter MAC-Add addresses. MAC-Xiaomi address in the list of allowed devices (you can find it on the sticker on the router case).

Comparison of Repeter Mode with Other Ways to Enhance Wi-Fi

Repetitor mode isn't the only way to expand Wi-Fi coverage, but let's compare it to alternatives to pick the best option.

If your goal is maximum speed (for example, for online games or video games) 4K), Repetitor mode is not the best choice:

• 🔌 Wireless connection of the second router in mode AP (Access Point).
• 📡 Mesh system (e.g. Xiaomi Mesh System) if budget allows.
• 🔄 Bridge. WDS, If both routers support this function (check the documentation).

💡

Repetitor mode is suitable for a temporary or budget solution. If you want stable high speed, choose Mesh network or wired connection.

Additional settings to optimize the repeater

To make the repeater based on the Xiaomi router work more efficiently, configure several parameters:

1. Turn off unnecessary frequencies. If your main router only runs at 2.4 GHz, turn off 5 GHz on the repeater (and vice versa). → Additionally. → Turn off 5 GHz
2. Reduce transmission power (if the repeater is close to the main router). This will reduce interference: Additional settings → Transmission power → Medium
3. Turn on the Smart Roaming feature (if any) to help devices automatically switch between the main network and the repeater: Wi-Fi settings → Smart roaming → Turn on
4. Update the firmware. New versions fix repeater shutdown bugs. Check the current firmware in the section: General settings → Firmware update

For advanced users: if your Xiaomi router supports SSH (For example, Redmi Router AX5), You can manually optimize relay parameters:

nvram set wl0_retry_short=15


nvram set wl0_retry_long=30




nvram commit




reboot

This will increase the number of attempts to retransmit packets, which is useful for a weak signal. SSH without experience – this can lead to the inoperability of the device.

When to avoid using Xiaomi router as a repeater

Despite its versatility, the repeater mode is not suitable for all scenarios.

• 🏠 Your apartment or house has an area of more than 100 m2 - the repeater will not cope with a uniform coating, it is better to use the Mesh system.
• 🎮 You need minimal latency (e.g. for online games or video conferencing) – repeater adds 10–30ms to ping.
• 📡 The main router runs on outdated standards (for example, the main router, 802.11n 2.4 GHz) - in this case, the speed through the repeater will be unbearably low.
• 🔌 You already have multiple repeaters on the network, and this creates a chain of relays, which critically reduces the speed.

Alternative solutions for these cases:

• 🔄 Powerline adapters (e.g. TP-Link) AV1000) — Internet transmission via electrical wiring, ideal for large houses.
• 🌐 4G/5G-router in backup mode (if the main Internet is unstable).
• 📶 Directed antenna for the main router (if the problem is a weak signal from the street).

⚠️ Note: If you use a Xiaomi router in smart home repeater mode (e.g., with Mi Home devices), make sure all gadgets are connected to the same network.Some devices (e.g., Xiaomi Robot Vacuum) may lose communication when switching between the main router and the repeater.

FAQ: Frequent questions about setting up a repeater on Xiaomi