How to strengthen Wi-Fi on Xiaomi devices: from smartphone to router

Weak Wi-Fi signal on Xiaomi, Redmi or smartphones POCO — It's a common problem that prevents you from using the Internet comfortably, and so are the brand's routers, even top-end models like the Xiaomi Router. AX6000 or Mi Router 4A Gigabits can slow down due to incorrect settings, interference, or hardware limitations. In this article, we will discuss 10 working ways to enhance Wi-Fi, from basic settings to advanced tricks with firmware and external antennas.

It's important to understand that the causes of weak signals are software (incorrect settings, outdated software) and hardware (interference, distance to the router, physical obstacles), and we start with simple solutions that do not require the purchase of additional hardware, and then move on to more complex methods. If you're on Xiaomi MIUI 14 or later, some of the functions may be different – we will mention this too.

Before you start setting up, check the obvious: is the Internet working on other devices? If so, the problem is in your smartphone or tablet. If not, it is the router or the provider. In the latter case, first restart the router (pull the plug out of the socket for 30 seconds) and contact the provider's support.

1. Optimization of Wi-Fi settings on Xiaomi smartphone

Often, weak signals are due to incorrect connection settings. Xiaomi smartphones have hidden settings that can improve network stability.

The first thing you should do is reset your network settings.

1. Go to Settings → Connections and Sharing → Reset your Wi-Fi, mobile network, and Bluetooth settings.
2. Confirm the action (passwords from saved networks will have to be entered again).

If the reset didn’t help, try manually setting the connection settings:

1. Put your finger on the name of your Wi-Fi network in the list of available connections.
2. Select Change the Network → Additionally.
3. Set Network Mode: 5 GHz (if your router supports this frequency) or Auto.
4. In the Channel Width field, select Auto or 40 MHz (for 5 GHz).

💡

If you have Xiaomi 12/13/14 s MIUI 14+, turn on the Wi-Fi option 6 in additional settings – this will speed up the connection on compatible routers.

Another useful trick is to disable the traffic saving feature, which can limit speed:

• 🔄 Go to Settings. → Battery and productivity → Savings in battery charge.
• 📱 Select the Applications → Find a browser or messenger (such as Chrome or Telegram).
• 🚫 Uncheck the box to limit background activity.

2. Choosing the right channel and frequency on the Xiaomi router

Xiaomi routers (such as Mi Router) 4C, AX3600, BE7000) The default is to automatically choose the channel, but it's not always optimal. Neighboring networks can cause interference, causing the speed to slow down:

First, check the loading of channels with applications like Wi-Fi Analyzer (Android) or NetSpot (Windows/macOS). The ideal channel is one that is used minimally.

Then manually set the channel in the router’s web interface:

1. Open your browser and type 192.168.31.1 (or miwifi.com).
2. Sign in (the default login and password is usually admin).
3. Go to Settings. → Wi-Fi (or Wireless Mode).
4. Select Additional Settings → Canal.
5. For 2.4 GHz, we recommend channels 1, 6 or 11 (they do not overlap). For 5 GHz, any free in the 36-165 range.
6. Save the changes and restart the router.

Select the least loaded channel in Wi-Fi Analyzer

Set a fixed channel in the router settings

Disable channel autoselect (if you have an option)

Reboot the router after the changes-->

Also, pay attention to the width of the channel:

• 📶 For 2.4 GHz, it is better to leave 20 MHz - this will ensure maximum compatibility and range.
• 🚀 For 5 Select GHz. 40 MHz or 80 MHz (if your devices support Wi-Fi) 5/6).

3. Update firmware and reset router to factory settings

Outdated software is one of the main causes of unstable Wi-Fi. The manufacturer regularly releases updates that correct errors and improve performance.

For Xiaomi routers:

1. Go to the web interface (192.168.31.1).
2. Go to General settings → Update firmware.
3. Click Check for updates and, if any, install them.

For smartphones:

1. Open Settings → About the phone → System update.
2. Download and install the latest version of MIUI.

If the update doesn’t work, do a full router reset:

1. Press and hold the Reset button on the back for 10-15 seconds (until the lights flash).
2. After the reboot, reset the router via miwifi.com.

⚠️ Note: Reset removes all settings, including network name (SSID) Write down the Internet connection settings in advance (they are specified in the contract with the provider).

4.Use of external antennas and repeaters

If software methods don't work, it's time to look at hardware solutions.

1. External antennas for router

Many Xiaomi routers (for example, AX3600 or AX6000) They have removable antennas, and they can be replaced by more powerful ones, with 5-9 dBi amplification:

• 📡 TP-Link TL-ANT2408CL (8 dBi, for 2.4 GHz).
• 📡 Alfa Network APA-M25 (7 dBi, universal).

2. Wi-Fi repeaters (repeaters)

If the signal doesn't reach some rooms, install a repeater. Xiaomi ecosystems are good for:

• 🔄 Xiaomi Mi Wi-Fi Range Extender Pro (supports Mesh).
• 🔄 TP-Link RE605X (Compatible with Wi-Fi 6).

3. Mesh systems

For large houses (100)+ m2) optimal use of the Mesh network. For example, the set of Xiaomi Mesh System (2-3 nodes) covers up to 200 m2 without loss of speed.

⚠️ Warning: When using external antennas, avoid pointing them at walls or metal objects, which causes interference. Optimal angle of inclination: 45° upwards.

5. QoS setup and traffic prioritization

QoS (Quality of Service) is a feature that distributes bandwidth between devices, and on Xiaomi routers it is called Smart queue or Traffic Priority.

To set up QoS:

1. Go to the router's web interface (192.168.31.1).
2. Go to Additional Settings → QoS.
3. Enable the function and select Priority by Device.
4. Add in. MAC-Addresses of devices that need more speed (for example, a smart TV or a work laptop).

You can also limit traffic for “gluttonous” gadgets:

• 📱 In the same QoS section, select Speed Limitation.
• 📉 Set a limit for devices that eat up the Internet (for example, 10 Mbps for a child’s smartphone).

💡

QoS is especially useful for online gaming and video calling. Prioritize devices where low latency (ping) is important.

Xiaomi smartphones also have a hidden prioritization function:

1. Enable Developer Mode (click 7 times on the MIUI version in Settings → About Phone).
2. Go to Settings → Additional → For developers.
3. Find Background Traffic Limitation and turn it off for critical applications.

6. Advanced methods: region change and firmware

If the standard methods don't work, you can try informal methods, which require caution, but sometimes give you a significant increase in stability.

1. Change of router region

Some Xiaomi models, for example, AX3600) They have transmission power limits depending on the country:

1. Download firmware for another region (e.g. Global instead of China) from Xiaomi Flasher.
2. Go to the router’s web interface and update the software manually through the firmware update. → Select a file.

Installation of custom firmware

For enthusiasts, there are alternative firmware like OpenWRT or Padavan that reveal the hidden capabilities of the router. 4A After the firmware Padavan appears:

• 📶 The ability to increase the transmission power to 20 dBm (instead of the standard 17 dBm).
• 🔧 Advanced QoS and Firewall settings.

⚠️ Attention: Installing custom firmware is warranty-free and can cause the router to fail!

3. Disconnection IPv6 (if there is a problem)

Sometimes. IPv6 It's in conflict with the provider's settings to disable it:

1. Go to the router's web interface.
2. Go to the Network → IPv6.
3. Select Disable and save the settings.

7. Optimization of the location of the router

Even the most powerful router is useless if it's in the wrong place.

Where to put the router:

• 🏠 In the center of the apartment / house (if possible).
• 🪟 1–1.5 meters from the floor (on a closet or wall).
• 📡 Far from microwaves, refrigerators and other sources of interference.

What to avoid:

• 🚫 Closed cabinets or drawers (signal weakens by 50–70%).
• 🚫 Wall made of concrete or brick (especially reinforced).
• 🚫 Closeness to mirrors or aquariums (water absorbs the signal).

If the router is in the corner of the apartment, try to direct the antennas at an angle:

• 📶 One antenna - vertically (to cover floors).
• 📶 The second is horizontal (for spreading over the area).

💡

The ideal router location is on an open surface, away from metal objects, and even a small displacement of 1-2 meters can improve the signal by 20-30%.

8. Diagnostics and elimination of interference

Weak Wi-Fi is not always the router's fault, and often the problem is external interference or hardware malfunctions.

How to find the source of interference:

1. Install the Wi-Fi Analyzer app on your smartphone.
2. Check which networks are running on your channel, and if there are many, change the channel (see section 2).
3. Turn off household appliances (microwave, wireless speakers, baby monitors) and monitor the signal change.

Frequent culprits of interference:

• 🎤 Wireless headphones/columns (operate at 2.4 GHz).
• 👶 Baby monitors or baby monitors.
• 🔌 Low quality extension or network filters.

If there is no interference, but the signal is still weak, check the cable from the provider:

• 🔌 Disconnect the cable from the router and inspect the connector (whether the contacts are bent).
• 🔄 Try connecting the cable directly to your computer – if the internet is working, the router is a problem.

To diagnose the Xiaomi router, use the built-in tools:

1. Go to the web interface (192.168.31.1).
2. Go to the state. → Journal of the system.
3. Check for type errors DHCP failed or authentic error.

FAQ: Frequent questions about strengthening Wi-Fi on Xiaomi