Why Wi-Fi doesn’t work on Xiaomi phone: all the reasons and ways to solve it

Did you turn on Wi-Fi on your Xiaomi, but the network persists? Or is there a connection, but the Internet does not work, and there is an exclamation mark next to the Wi-Fi icon, POCO Mi – from budget Redmi Note 12 to flagship Xiaomi 14.In 80% of cases, the fault can be fixed independently in 5-10 minutes without contacting the service center.

In this article, we’ll look at all the possible reasons why Wi-Fi might not work on Xiaomi, from simple setup errors to hardware breakdowns, how to diagnose a problem, which settings to check first, and what to do if the network goes down after an update. MIUI. And for complex cases, we have prepared unique solutions that are not in the standard instructions (for example, how to get around the bug with the help of the computer). MAC-address on firmware 2023-2026).

Don't rush to drop your phone to factory settings -- 95 percent of the time, it won't help. Start with simple steps and gradually move on to more sophisticated methods.

1. Checking the basic settings: what could have gone wrong

Before digging deep into the settings MIUI, Make sure that the problem is not on the surface. Very often, Wi-Fi doesn't work because of little things that users just don't pay attention to.

The first thing you need to do is reboot your phone. This is trivial, but it works 30 percent of the time, especially if the network stops connecting after a long period of use. Hold the power button for 10 seconds until the turn off menu appears, then select Reboot.

Next, check:

• 📶 Plane Mode: Even if it is turned off in the notification curtain, go to Settings → SIM-maps and mobile networks → Airplane mode and make sure the switch is grey.
• 🔄 Automatic connection: in Settings → Tap Wi-Fi on your network, then turn off and turn on the option to Connect automatically again.
• 🔒 Wi-Fi Password: If you have recently changed it, delete the network (click on it and select Remove), then connect again by entering the current password.
• 📵 Energy Conservation: In Settings → Battery and performance → Power saving disable Ultra-economic mode – it can block background Wi-Fi operation.

If you've been doing this, you've got to move on to the next section, but first, you have to answer one question.

2.Router problems: is the phone to blame

Half of the time, it's not the smartphone that's the router, especially if Wi-Fi isn't only on Xiaomi, and other devices like the laptop, the tablet are fine.

First, reboot the router. Pull the power cord out of the socket, wait 30 seconds and turn it back on. If the Wi-Fi started after that, the problem was that it was stuck. DNS-Router cache. If not, read on.

Check the following router settings (go to its web interface via a browser, usually at 192.168.0.1 or 192.168.1.1):

• 🔄 Wi-Fi channel: if the router has Auto in the settings, try manually setting the channel 6 or 11 (they are least susceptible to interference).
• 📡 Operating mode: If you have an old router, set the mode 802.11n instead 802.11ac or AX — Some Xiaomi models are not working well with the new standards.
• 🔒 Type of encryption: should be WPA2-PSK (not WPA3 neither WEP!). The latter often glimpses MIUI.
• 📵 Filtration MAC-Addresses: If it is included, add MAC-Address of your Xiaomi in the list of allowed (you can find it in Settings) → The phone. → General information → MAC-Wi-Fi address).

If the Wi-Fi is up after the changes but the speed is low, go back to the channel settings and try other values (e.g., 1 or 13). Also check if the phone is too far from the router - walls of concrete or metal partitions can block the signal.

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If you have a dual-band router (2.4 GHz + 5 GHz, try connecting to the network 5 GHz — it's less loaded, but it has a smaller range. 5 GHz is usually denoted by the suffix _5G or -5.

3. Failures in MIUI: How to Correct Programming Errors

Firmware MIUI It is known for its bugs, especially when it comes to networking, if Wi-Fi stopped working after a system update (for example, with a computer system). MIUI 13 on MIUI 14), the problem is almost certainly software:

First, reset the network settings, and this will delete all the stored Wi-Fi networks and return the connection settings to the factory.

1. Go to Settings. → Memory and network → Resetting network settings.
2. Confirm the action (you may need to enter a pattern lock or PIN-code).
3. Restart your phone and try to connect to Wi-Fi again.

If this doesn’t help, try clearing the system cache:

1. Go to Settings → Applications → Application Management.
2. Slip on the three points in the upper right corner and select Show System Processes.
3. Find Settings (or Settings), open and click Clear Cache.
4. Do the same for the Wi-Fi app.

For advanced users: if the problem appeared after the update, you can try to roll back to the previous version MIUI. However, it is risky - not all models support downgrade, and you can get a "brick". MIUI Xiaomi".

4. Conflict IP-Addresses: Why your phone doesn't access the network

Sometimes Xiaomi connects to Wi-Fi, but the Internet does not work – there is an exclamation point next to the network icon, and an error appears in the browser “No network access”, which means that the phone did not receive the correct one. IP-Here's how to fix the router address:

First, check the current network settings:

1. Go to Settings. → Wi-Fi.
2. Tap on your network and select Change Network (or Additional).
3. See what parameters are in the Settings section IP.

If it's chosen. DHCP (automatic IP), But the internet doesn't work, try to set static. IP manually:

After saving the settings, restart the phone. If the Wi-Fi is up and running, but disappears after a while, the problem may be in conflict. IP with another device on the network:

• Go to the router settings and see the list of connected devices (DHCP Clients List or similar section).
• Find your Xiaomi and see if it matches up. IP gadget-wise.
• If there is a match, assign another static phone to the phone. IP (for example 192.168.0.101).

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If, after the appointment of a static IP Internet is working, but the speed has become low, return the settings to the DHCP And try rebooting the router.

5. Problems with MAC-address: hidden bug MIUI 2023–2026

One of the most insidious problems at Xiaomi in recent years is the failure of the company. MAC-It's like this: the phone sees the network, tries to connect, but after a few seconds it emits an error "Authentication..." or "Save, protection." WPA/WPA2". On other devices, the same Wi-Fi works normally.

The reason is that MIUI sometimes resets or "resets" MAC-The Wi-Fi address, which causes the router to block the connection (thinks it's someone else's device), is especially true for firmware. MIUI 14 and newer on the Redmi Note models 11/12, POCO X5 Xiaomi 13/14.

How to check and correct:

1. Go to Settings. → The phone. → General information and find the line MAC-Wi-Fi address.
2. If there is a value Unavailable, 02:00:00:00:00:00:00:00 or any combination with zeros is yours. MAC throw off.
3. Try turning on and off Airplane Mode 2-3 times in a row. Sometimes it temporarily restores. MAC.
4. If it doesn’t help, reset the network (Settings) → Memory and network → Resetting network settings).

If MAC It still doesn't show up or resets after you restart, it's a hardware problem (the Wi-Fi module is damaged), and then only repairs will help. But before you bring the phone to the service, try another way:

Change. MAC manually ADB|Turn off randomization. MAC wifi-based|Update the firmware to the latest version|Reset your phone to factory settings-->

Change of change MAC through ADB (Only for advanced users!):

adb shell


su




ifconfig wlan0 hw ether 00:11:22:33:44:55




ifconfig wlan0 up

Replace 00:11:22:33:44:55 with any valid MAC (You can generate it here. This is a temporary way of doing it, after you reboot it. MAC throw back.

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On some Xiaomi models (for example, Redmi Note 10 Pro) MAC-You can change the address via the engineering menu, enter the dialer code ##4636##, select Wi-Fi Information, and find the option. MAC-address.

6. Hardware malfunctions: when without repairs can not do

If none of the above methods worked, the problem is likely hardware, and here are the most common breakdowns that may cause Wi-Fi to fail on Xiaomi:

• 📱 Wi-Fi module is damaged, most often it fails after a phone falls or moisture is injected, symptoms: the network does not turn on at all, or MAC-address reset at 02:00:00:00:00:00.
• 🔌 Wi-Fi antenna disconnected: if the phone fell or disassembled, the antenna contact could go away.
• 🔋 Power problems: If the phone doesn't turn on Wi-Fi or it spontaneously shuts down, the power controller may be to blame.
• 📲 The connector is damaged. SIM-maps: some models Xiaomi Wi-Fi and mobile network use a common antenna unit. SIM broken, it can affect Wi-Fi as well.

How to diagnose a hardware malfunction:

1. Try connecting to Wi-Fi in Safe Mode. If it's running, the problem is the software, not the hardware. To go into Safe Mode, press the power button, then tap and hold it to Turn it off until you're prompted to go to Safe Mode.
2. Check if Bluetooth works. If it doesn't, it's almost certainly damaged. Wi-Fi/Bluetooth-Module (they are often combined in a single chip).
3. Connect your phone to another router (like a mobile hotspot on another phone), and if Wi-Fi doesn't work there, the problem is the phone.

If you have confirmed a hardware malfunction, do not try to repair the phone yourself, it can lead to even more serious breakdowns. Contact the Xiaomi service center or a checked repair center. The average cost of replacing a Wi-Fi module with Xiaomi is from 1,500 to 3,500 rubles (depending on the model).

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Before you carry your phone for repair, back up your data! When replacing your Wi-Fi module, you may need to completely reset your phone.

7. Specific problems on popular Xiaomi models

Some Xiaomi models have unique Wi-Fi bugs that are not found on other phones.

If your model isn’t in the table, but the problem is specific (e.g., Wi-Fi only works in certain applications), try the following generic steps:

• 🔄 Turn it off. VPN: some VPN-Services are blocking local traffic.
• 📱 Check the developer settings: if you have Wi-Fi debugging or Fake Locations enabled, it may interfere with network performance.
• 🔒 Remove Security Certificates: Go to Settings → Security → Additionally. → Encryption and credentials → Trusted credentials and remove all user certificates.

8.When to contact the service: checklist before the visit

If you’ve tried all the ways, but Xiaomi’s Wi-Fi still doesn’t work, it’s time to contact the service. But before you carry your phone for repair, check this checklist to save time and money:

Make sure the problem isn’t with the router (check on other devices)|Try connecting to another Wi-Fi network (such as a cafe or a friend’s office)|Make a backup of all data (photos, contacts, messages)|Write it down. IMEI phone (in case you need to re-flash the phone)|Check if the warranty is valid (if so, contact the official Xiaomi service)-->

In the service center you can offer the following types of repairs:

• 🔧 Replacement of Wi-Fi module (from 1,500) ₽): If the module is burned or not determined by the system.
• 📶 Antenna soldering (from 1000) ₽): If the antenna has moved or is damaged.
• 🔄 Reflashing with restoration IMEI (800 ₽): If the problem is in damaged memory areas.
• 🔋 Replacement of the power controller (from 2,500) ₽): Wi-Fi is shut down due to power problems.

The average repair time is 1 to 3 days. If the phone is warranty, the repair should be free (but the warranty does not cover damage from falls or moisture).

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Before visiting the service, reset your phone to factory settings (Settings) → The phone. → Resetting. This will eliminate all possible software conflicts and simplify diagnostics.

FAQ: Frequent questions about Wi-Fi on Xiaomi