Why Xiaomi phone does not connect to Wi-Fi: a full analysis of the causes and solutions

You're trying to connect a Xiaomi smartphone to a home or public Wi-Fi network, but the device stubbornly ignores the password, gives an authentication error or does not see the available access points? The problem is familiar to millions of users - according to service centers, 37% of calls on the brand's phones are due to wireless problems, and the fault is not always the smartphone itself: in 40% of cases, the root of the evil lies in the settings of the router or provider.

In this article, we will discuss all the possible reasons why Xiaomi Redmi, POCO Mi refuses to connect to Wi-Fi – from banal typos in the password to hidden firmware failures MIUI. You'll get it:

• 🔍 Diagnostic table for quick identification of the culprit of the problem (phone or router)
• 🛠️ Step-by-step instructions for each scenario (including rare cases like conflict) IP)
• ⚠️ Warnings about actions that could make things worse (such as resetting a network without a backup)
• 📊 Analysis of specific errors (codes 103004, 103006 and others)

Special attention will be paid to the unique features of Xiaomi: why the brand’s phones often conflict with TP-Link routers on firmware older than 2021, how the Dual Band mode affects connection stability, and why. MIUI 14 can block connection to public networks with portal authentication. Let's start with the simplest thing: checking for obvious reasons.

1. Check basic settings: password, aircraft mode and geolocation

Before digging deep into your router settings or dropping your phone to factory settings, make sure the problem isn’t on the surface. According to a survey of Xiaomi users, 22 percent of Wi-Fi issues are due to trivial omissions:

• 🔑 Wrong password. Yes, it sounds silly, but it's easy to make mistakes when entering a password on a smartphone screen — especially if it contains characters in different registers (O and 0, l and 1). Try re-entering the password by first copying it from a trusted source (for example, from notes or from a sticker on the router).
• ✈️ Airplane mode. MIUI There's a bug: sometimes the plane mode activates spontaneously after an update or reboot. Check the top notification bar -- if the airplane icon is illuminated, tap it to turn it off.
• 📍 Geolocation services, starting with MIUI 12, some models (Redmi Note 10 Pro, POCO X3 Pro) block the connection to public networks if location services are disabled. → Confidentiality → Permits → geodata.
• 🔄 Reboot your devices. Turn off your phone and router for 30 seconds, then turn on your router first, and then turn on your smartphone in a minute. DHCP.

If you've had a problem with this manipulation, move on to the next section. Importantly, don't ignore this step. Statistically, 1 in 5 customer calls end with the words, "He was in airplane mode at all..."

2.Router problems: settings that block Xiaomi

Often the router is not the phone, especially if other devices (laptop, tablet) are connected without problems, and Xiaomi stubbornly ignores the network.

Pay special attention to the dual range (2.4/5 Many routers (e.g. Xiaomi Mi Router) 4A) By default, both networks are combined under the same name (SSID). This can cause problems if the phone is trying to connect to the 5 GHz, and the signal at this frequency is weak:

1. Go to the router settings (usually 192.168.0.1 or 192.168.1.1).
2. Find the Wi-Fi (or Wireless) section.
3. Turn off the Smart Connect option (or similar) and assign different names to 2.4 and 5GHz networks.
4. Connect your phone to a 2.4GHz network, which is more stable over longer distances.

💡

If you have a router from a provider (for example, Rostelecom or Beeline), its settings may be blocked. Call support and ask to switch security mode to the Internet. WPA2-PSK.

Xiaomi specific errors: codes and their meaning

When you try to connect to Wi-Fi, Xiaomi smartphones sometimes give out numerical error codes, which help to diagnose the problem more accurately.

• 103004 — Authentication error. Usually means a wrong password, but it can also occur when security protocols conflict. WPA2-PSK, not WPA/WPA2 Mixed.
• 103006 — IP-Two devices on the network got the same thing. IP-Solution: Reboot router or manually assign static IP phone-side DHCP.
• 103008 - Weak signal. The phone sees the network but can't establish a stable connection. Try to get closer to the router or change the channel to a less loaded one (use the Wi-Fi Analyzer app for ether analysis).
• 103012 - Mistake DNS. It occurs when you connect to public networks (hotels, airports). Solution: manually write down the information. DNS from Google (8.8.8.8 and 8.8.4.4) in connection settings.

If you see code that is not listed, try the following algorithm:

1. Forget the network on the phone: settings → Wi-Fi → [tap on the net] → Delete.
2. Reboot the phone and router.
3. Try to connect again by entering the password manually (not through autocomplete).

4. Failures in MIUI: Network reset, updates and hidden features

Sometimes the problem is the phone's software. MIUI It's known for its features, which can interfere with the stable operation of Wi-Fi:

• 🔄 Reset the network settings. This is the first step if the phone is not connected to any network. → System and device → Additionally. → Network reset. Warning: this will delete all saved Wi-Fi and Bluetooth passwords!
• 📱 Update MIUI. In older versions of the firmware (especially) MIUI 11 and below) there are bugs with Wi-Fi module. Check for updates in Settings → The phone. → Updating the system.
• 🔍 Hidden Developer Mode Activate It (7 times tap the Version) MIUI In About Phone, then in Settings → Additionally. → For developers, turn on the option to Always look for Wi-Fi networks.
• 🛡️ firewall MIUI. Sometimes it blocks the connection to public networks. → Annexes → Permits → Autostart, find Security and disable Autostart.

Important: if you have a problem after resetting the network, don't rush to reset the phone to the factory settings. First, check if changing the firmware region helps. 12T) different versions MIUI for different countries, and in the "Chinese" firmware may be limited to connect to some types of networks.

Check out MIUI updates

Reset your network settings (not to be confused with a full reset!)

Remove all saved Wi-Fi networks manually

Try connecting to another network (e.g., give away Wi-Fi from another phone)

-->

5. Hardware problems: antenna, Wi-Fi chip and repair

If none of the software methods worked, it might be the hardware.

• The phone doesn’t see any Wi-Fi networks, although Bluetooth works.
• The network appears in the list, but when you try to connect, you get an error of 103004 or 103015.
• Wi-Fi only works near the router (less than 1 meter away).
• After falling or getting moisture, the Wi-Fi module stopped functioning.

Here's what could have gone wrong:

Warning:

⚠️ If the phone fell or came into contact with liquid, don't try to disassemble it yourself.Modern Xiaomi smartphones have moisture protection (e.g. Redmi Note 11 Pro)+ 5G s IP53), But that doesn't mean they're completely waterproof. Corrosion can spread to other components, and in a month you'll have a broken display or battery.

Test codes can be used to diagnose hardware problems:

1. Open the Phone app.
2. Enter the combination: ##4636###.
3. Go to the Wi-Fi information tab.
4. Check the status of Wi-Fi connection. If it shows Disconnected even when Wi-Fi is on, the problem is precisely hardware.

6. Conflicts with the provider: blocking, IPv6 nuance

Sometimes the problem is not the phone or the router, but the ISP side, especially for public networks (cafes, airports) or when connecting to corporate hotspots.

• 🔒 Lock-in MAC-Some providers (e.g. hotels) only allow registered devices to connect. Solution: contact customer support and request your add-on MAC-address.
• 🌍 IPv6 vs IPv4. If the router is configured to IPv6, The phone is trying to get IPv4-Address (or vice versa), the connection will not establish. In the router settings, try to disable IPv6.
• 📡 Device limit: Many providers limit the number of devices connected at the same time (e.g., 5) Solution: disable unnecessary devices or restart the router.
• 🔄 Dynamic IP. If the provider changes frequently IP-address, phone may not be able to update the data. IP connection settings.

To diagnose problems with the provider:

1. Connect your phone to the mobile internet (3G/4G/5G).
2. Launch your browser and go to the site 2ip.ru.
3. Check if yours is being determined. IP-If not, the problem is on the provider's side.

It is important for owners of Xiaomi in Russia:

⚠️ Some models (Redmi Note 10, POCO X3 NFC) have problems connecting to networks where authorization is used SMS (This is because Google is blocked from firmware in China, so you can install global firmware (EUA) via Fastboot.

7. Alternative ways to connect if nothing helps

If all of the above methods did not work, and the Internet on the phone is urgently needed, use alternative options:

• 📶 Modem mode. Connect your phone to another device (laptop, tablet) via USB Or Bluetooth and give it away. Xiaomi does it in Settings. → Access Point and modem → Modem mode.
• 🔌 USB-ethernet adapter for models with support OTG (for example, POCO F3) can buy an adapter USB-C → Ethernet (worth it) ~500 ₽) and connect to the router via cable.
• 📱 The second device is like a bridge. If you have another phone or tablet, connect it to Wi-Fi, then turn on the access point on it and connect it to a problematic Xiaomi.
• 📡 4G/5G If the problem is only with home Wi-Fi, buy a mobile router (for example, Xiaomi Mi Wi-Fi Router). 4G) and use the mobile Internet.

Advice for travelers:

💡

If you are abroad and your phone does not connect to hotel Wi-Fi, try manually prescribe the network settings. DNS This is often used by Google (8.8.8.8) to circumvent the limitations of local providers.

8.When to contact the service center?

There are situations where self-repair is not possible or advisable.

• 🔧 You have followed all the instructions in this article, but the problem remains.
• 💧 The phone fell into the water or was subjected to severe mechanical stress.
• 🔥 On the board, traces of oxidation or burns are visible (this can be seen if the back cover is removed).
• 📉 The problem appeared after unofficial firmware or unlocking the bootloader.
• 🔄 Wi-Fi is very unstable (it shuts down every 5-10 minutes).

The cost of diagnostics in official service centers Xiaomi is usually 500–1 000 ₽. If the problem is in the antenna or contacts, the repair will cost 1 500–3 000 ₽. Chip replacement Wi-Fi/Bluetooth It is usually cheaper to buy a new phone if the model is older. 2–3 years.

How to choose a service center:

1. Check if the center has official Xiaomi accreditation (list on mi.com).
2. Read reviews on Yandex.Maps or 2GIS – especially pay attention to complaints about Wi-Fi.
3. Check whether you have a warranty for repairs (should be at least 3 months).
4. If the phone is warranty, do not open it yourself - this will cancel the warranty!

💡

Before visiting the service, make a backup copy of the data through Settings → System and device → Backup: In some cases, a complete phone reset is required for repairs.

FAQ: Frequent questions about Wi-Fi issues on Xiaomi