How to improve Wi-Fi on Xiaomi phone: from settings to hardware solutions

Slow internet, persistent connection breaks or weak Wi-Fi on Xiaomi smartphones are a problem that affects one in three users, and the reasons can be in the settings of the phone itself, the configuration of the router or even physical obstacles. In this article, we will discuss all possible ways to improve Wi-Fi, from basic settings to advanced technical solutions that work on models from Redmi Note 12 to Xiaomi 14 Ultra.

It's important to understand that there's no one-size-fits-all solution. For example, 5GHz Wi-Fi problems on Xiaomi are often solved by changing the router's channel, and a weak signal in the far rooms may require a repeater, and we structured the materials so that you can quickly find a solution to your situation, whether it's a software failure, hardware limitations or network configuration errors.

1. Check basic Wi-Fi settings on Xiaomi

Before you change your router settings or buy additional hardware, make sure that the problem is not with the settings of the smartphone itself.

• 📶 Enable the "High Speed" mode (available on the MIUI 12+): Go to Settings. → Wi-Fi → Additionally. → High-speed mode: This option prioritizes connection speed over battery savings.
• 🔄 Forget the network and connect again: sometimes cached settings conflict with the current parameters of the router. → Wi-Fi, then connect again.
• 🛡️ Turn off Smart Network Switch: This feature automatically switches the phone to mobile data when Wi-Fi is weak, which can create the illusion of connection problems. → SIM-maps and mobile networks → Intelligent switching.

If the signal has not improved after these manipulations, move to the next section. Especially often a bug with a "hang" Wi-Fi is observed on Xiaomi smartphones with MediaTek processors (for example, Redmi 10C or POCO M4 Pro), where resetting network settings helps.

Router optimization for Xiaomi: channels, standards and protocols

In 60 percent of cases, weak Wi-Fi on the phone is a router problem, not a smartphone problem. Xiaomi's current smartphones support Wi-Fi 6 (802.11ax) and Wi-Fi 5 (802.11ac) standards, but many routers default to outdated modes.

To change these settings, log into the router control panel (usually at 192.168.0.1 or 192.168.1.1) and look for Wi-Fi Settings or Wireless Mode. On Xiaomi Mi Router routers, the path is: Settings → Wi-Fi → Additional settings.

⚠️ Note: If your router does not support Wi-Fi 6, but the Xiaomi phone is equipped with the appropriate module (for example, Xiaomi 13 Pro), give priority to the 5 GHz band - it is less loaded and faster.

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Use the WiFi Analyzer app (available on Google Play) to see the congestion of channels in your home. Choose the one with the least neighboring networks.

3. Reset network settings and update firmware

If Wi-Fi on Xiaomi started to “glue” after updating MIUI or installing applications, the cause may be a software conflict, in such cases, helps reset network settings:

1. Go to Settings → About Phone → Settings Reset → Reset your Wi-Fi, mobile network and Bluetooth settings.
2. Confirm the action and restart the device.
3. Connect to the network again and check the speed.

If the reset didn’t help, check the relevance of the firmware:

• 📱 Update. MIUI: Settings → The phone. → System updates are particularly critical for Redmi models 9/10, where in the old versions there was a bug with a cliff Wi-Fi when the screen was locked.
• 🔧 Update your router firmware: legacy software may conflict with today's smartphones. On Xiaomi routers, check for updates in the Mi WiFi app.

⚠️ Note: On some Xiaomi models (e.g, POCO X3 NFC) When you reset your network settings, you may lose the "High Speed Mode" option, and you can only restore it through a full reset of your phone.

Make sure that passwords from Wi-Fi are saved|Record the router's settings (SSID, channel, password)|Check for backup copies of important data|Make sure your phone is at least 50 times charged%-->

5GHz Wi-Fi Issues: Why Xiaomi Doesn't See Network or Shut Down Often

Many Xiaomi users are faced with the fact that the phone does not see or connect to the 5 GHz network, but the Internet does not work.

• 📡 Standard incompatibility: Some routers (especially older ones) use 5GHz channels above 140 that are not supported in Russia.
• 🔌 Lack of support DFS: channel 50-140 demand DFS (Dynamic Frequency Selection, which is not in Redmi's budget smartphones.Switch to channels 36-48.
• 🔄 Bluetooth conflict: on some models (e.g. Xiaomi) 11T) simultaneously active Bluetooth can interfere with 5GHz Wi-Fi. Turn off Bluetooth for the test.

If your phone sees a 5GHz network but doesn’t connect, try:

1. Install a fixed channel on the router (not "Auto").
2. Disable WPA3 and leave only WPA2 (temporary solution).
3. Manually prescribe DNS (e.g., 8.8.8.8 and 8.8.4.4 from Google) in the phone’s connection settings.

5. Hardware solutions: antennas, repeaters and Mesh-systems

If software methods fail, the problem may be physical limitations, such as thick walls, a long distance from the router, or a weak signal.

• 📶 Wi-Fi repeater: connects to an existing network and relays the signal. Xiaomi is well suited to repeaters of the same brand (for example, Mi Wi-Fi Repeater 2).
• 🌐 Mesh system: multiple access points, working as a single network, optimal for large apartments. Popular options: Xiaomi Mesh System or TP-Link Deco.
• 📡 External antenna for router: if your router supports removable antennas, replace the standard with more powerful ones (for example, with amplification). 7-9 dBi).
• 📱 USB Wi-Fi adapter: for stationary use, you can connect to the phone via OTG External adapter (e.g. TP-Link) TL-WN725N).

When choosing a repeater or Mesh system, pay attention to support for multiplayer MIMO (MU-MIMO) and beamforming – these technologies will improve the work with mobile devices, including Xiaomi.

6. Xiaomi Hidden Settings to Improve Wi-Fi (For Advanced)

Xiaomi has hidden options that can be activated through Developer Mode or Engineering Menu, which require caution but sometimes give significant stability gains:

• 🔧 Disabling Network Scanning in the Background: Settings → Additionally. → For developers → Disable "Wi-Fi scanning in the background" This reduces the load on the Wi-Fi module, but can slow down the automatic connection to known networks.
• 📊 Change the Aggressive Switching settings: From the Engineering Menu (#4636##) select Wi-Fi information → Wi-Fi configuration and install Roaming aggressiveness on Low or Medium.This will reduce the number of unnecessary reconnections.
• 🔄 Reset MAC-Addresses: In some cases (for example, after a ban in a public network) it helps to change the MAC. For that, in Settings. → Wi-Fi → Additionally, turn on Random. MAC (readily MIUI 13+).

⚠️ Warning: Changing the settings in the engineering menu (##4636###) can lead to unstable phone performance. Don't change the values unless you are sure about their purpose! On Xiaomi models with Qualcomm processors (such as Xiaomi 12 Pro), incorrect settings can cause the Wi-Fi module to overheat.

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The greatest effect of hidden settings is observed on smartphones with custom firmware (for example, Xiaomi.eu), where the manufacturer does not restrict access to system parameters.

7. Alternative methods: applications and third-party firmware

If standard methods do not help, you can try:

• 📱 Wi-Fi analysis applications: WiFi Analyzer — shows congestion. NetSpot — builds a heat map of the signal in the room. PingTools Network Utilities — tests speed and stability.
• 🔧 Brush firmware: Firmware like LineageOS or Pixel Experience sometimes optimizes Wi-Fi performance better, especially on older Xiaomi (e.g. Redmi). 4X or Mi A1).
• 🛠️ Modems with external antenna: For extreme cases, you can use USB-modems with external antenna support (e.g. Huawei) E3372), plug-in OTG.

Before installing custom firmware, backup through TWRP and note that this will void warranty. On newer models (Xiaomi 13/14), unlocking the bootloader may be difficult due to manufacturer policy.

FAQ: Frequent questions about Wi-Fi on Xiaomi