The Internet works poorly on Xiaomi: the reasons and how to fix

Xiaomi smartphones are famous for their value for money, but even they are not immune to problems with Internet connection. Slow loading pages, connection breaks, inability to connect to Wi-Fi or mobile network — these symptoms are familiar to many users. 80% of the time, it is not hardware defects that are to blame, but incorrect settings or software failures that can be fixed on their own.

In this article, we’ll look at all the possible reasons why Xiaomi is using the same name as Redmi, POCO, Black Shark's Internet is not working well, from the simple overheating of the processor to the hidden limitations of the operator, you will receive step-by-step instructions with illustrations (where it is critical), checklists for diagnostics and tips on how to avoid problems in the future. MIUI, which the manufacturer does not advertise, but which directly affect the connection speed.

If you've tried to reboot your phone before and it doesn't work, don't rush it into service. 9 out of 10 cases solve the problem in 5 to 15 minutes without special skills.

1. Wi-Fi problems: from signal to router settings

So, to start with the most common scenario, when the Internet doesn't work well over a wireless network, the symptoms are: pages load long, videos load long. 1080p slows down, and the speed in tests (for example, on Speedtest) is lower than the declared operator.

The first thing you need to check is the signal strength of the Wi-Fi. MIUI It's displayed in the status bar (top of the screen). If there's 1-2 divisions out of four, the problem is in the coverage area:

• 📶 Move closer to the router – walls, furniture, and even aquariums weaken the signal.
• 🔄 Change the Wi-Fi channel in the router settings (optimum - 1, 6 or 11 for 2.4 GHz).
• 🛡️ Turn off Wi-Fi energy savings in Settings → Wi-Fi → Additionally. → Saving Wi-Fi energy.
• 🔗 Check the Connection Standard: If the router supports Wi-Fi 6 (802.11ax), And the smartphone is connected to 802.11n, speed will be limited.

If the signal is full, but the speed is still low, the settings are to blame. MIUI. For example, some firmware has a default traffic limit on the background applications to turn it off:

1. Go to Settings. → SIM-maps and mobile networks → Using traffic.
2. Select your Wi-Fi network and turn off the option to limit background use.
3. Stick to three points (⋮) in the upper right corner and select Reset Statistics.

2. Mobile Internet: Why 4G/5G slow-moving

If you have problems with the mobile Internet (symbols) 4G, 5G or E in the status bar, the reasons may be related to the operator, SIM-It's a map or a phone setting. Let's start with the simplest one: network mode.

V MIUI By default, it can be turned on 3G instead 4G, even if SIM-The map supports more modern standards:

1. Open the Settings. → SIM-maps and mobile networks.
2. Choose yours. SIM-map and tap the network type.
3. Install. 4G (preferably 5G (if maintained).

If the speed is still low, check:

• 📱 APN-settings: operators sometimes update them. Reset to factory settings → SIM-map → Access point (APN) → Reset to factory.
• 🔄 Roaming: If you are in another country, make sure that data roaming is enabled.
• 📡 Coverage area: Even in a city, there may be dead zones.
• 🔋 Traffic Saving Mode: C Settings → Battery and productivity → Saving traffic.

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If you have a Redmi Note 10 Pro or newer, try enabling dual connectivity. 4G+ customized SIM-This will speed up the loading by combining the two frequencies.

If nothing works, the problem may be on the operator's side. For example, MegaFon and Beeline sometimes limit speed for devices with unoriginal firmware. SIM-card.

3. Software glitches: cache, updates and “junk” in the system

Clogged cache, outdated firmware, or conflicting applications are common culprits of slow Internet. Let's start with the most innocuous cache. DNS. Resetting it helps in 30% of cases:

1. Open Settings → Applications → Application Management.
2. Stick to three points (⋮) Select Show System Processes.
3. Find it. DNS-Customer, open it and press Clear cache.

If that doesn’t work, try resetting your network settings (not to be confused with a full phone reset!):

Settings → System → Resetting → Resetting Wi-Fi, mobile network and Bluetooth

Updates MIUI They can also affect Internet speed, for example, versions 12.5 to 13.0 had a bug that limited background traffic for some applications:

• 📲 Go to Settings. → The phone. → Updating the system.
• 🔄 If you have an update, install it (preferably via Wi-Fi).
• ⚠️ If the Internet has become worse after the update, roll back to the previous version via Fastboot.

Hardware problems: antennas, modules and overheating

If the software methods didn't work, the problem could be the hardware.

It is difficult to diagnose hardware problems on your own, but there are several tests:

1. Testing of the antenna: enter the code in the engineering menu ##4636##, Select Phone Information and look at Signal Strength. -100 dBm, the antenna is not working well.
2. Overheating test: Run a heavy app (like Genshin Impact) and check the Internet speed in 10 minutes, and if it falls, it's overheating.

If you suspect a hardware malfunction but are not sure, try inserting your own. SIM-If the internet is working properly there, the problem is definitely your Xiaomi.

5. Hidden settings MIUI, which slows down the Internet

Xiaomi is known for hiding some of the settings deep in the menu, some of which directly affect the speed of the Internet, but users do not even know about them.

1.Restriction of background traffic for applications

By default. MIUI It limits speed for applications in the background:

Settings → Applications → Application Management → Select App → Data Use → Limit Background Data (Switch Off)

2.The “Data is always active” mode

This option keeps the mobile connection on even when you're connected to Wi-Fi, which speeds up the transition between networks.

→ SIM-maps and mobile networks → Additionally → Data is always active (enable)

3. Network optimization in developer mode

Activate Developer Mode (Tap 7 times on Version) MIUI In About the Phone, then:

Settings → Additional → Developers → Network Optimization (enable)

4. Settings TCP/IP

In the same settings for developers, you can change the size of the window TCP, which sometimes speeds up loading:

Settings → Developer → TCP window size (set 512 or 1024)

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Hidden settings MIUI They can both speed up and slow down the Internet. After changes, always check the speed with Speedtest or Ookla!

6. Viruses, VPN and third-party applications

If the Internet gets bad after you install a new app, it may be the fault, and it's especially common to have problems with:

• 🔒 VPN-Clients (e.g. NordVPN, ProtonVPN): They redirect traffic through their servers, which can slow down the connection.
• 🛡️ Antiviruses (e.g. Avast, 360 Security): Real-time traffic scanning slows down loading.
• 🎮 Game cheats (e.g. GameGuardian): They modify network packets, leading to lags.
• 📊 Optimizers (e.g., optimizers, DU Speed Booster: Often blocking background processes, including network services.

To find the culprit:

1. Launch your phone in Safe Mode (press the power button) → Safe mode. If the Internet is working normally, the problem is in one of the installed applications.
2. Check the traffic consumption by application in Settings → SIM-map → Traffic usage: If an app consumes a suspiciously large amount of data, delete it.
3. Turn it off. VPN (If you are using it, check the speed without it.

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If you use AdGuard or similar ad blockers, try disabling them. Sometimes they conflict with system services. MIUI and slow down page loading.

If you suspect a virus, scan your phone through Malwarebytes or Kaspersky Mobile, but remember that most Android viruses are just aggressive ads, not real malware.

7 Problems on the part of the operator or router

Sometimes it's not the phone that's the fault, it's the ISP or router.

For mobile Internet:

• 📵 Check if the operator is blocking access to certain sites (for example, Telegram or Torrent).
• 🔄 Check if the nearest tower is technically working (information is usually available on the operator’s website).
• 💳 Check the balance – sometimes with a negative balance, the speed is limited to 64 Kbps.

For Wi-Fi:

• 🔌 Restart the router (pull the plug out of the socket for 30 seconds).
• 📡 Check if there are too many devices connected to the router (optimally no more than 10).
• 🔒 Make sure that the router does not have a speed limit on the MAC-The address (sometimes it is done by smart parents).

If you have Xiaomi Router, update its firmware through the Mi Wi-Fi app. In older versions, there was an error that caused the speed to drop when connecting Xiaomi devices.

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If all the devices in the house have slow Internet, the problem is not the phone, call the ISP or check the router.

8.Extreme measures: reset to factory settings

If none of these things work, you have to reset your phone completely, and it's a radical method, but it solves 90 percent of the software problems, and it's important that you back up before you reset.

Instructions:

1. Go to Settings → About Phone → Backup and Reset.
2. Select Resetting → Erase all data.
3. Confirm the action (you will need to enter a pattern lock or PIN).
4. After restarting, set your phone as new.

If the Internet is not working well after the reset, it's definitely a hardware problem.

• 🔧 Contact the Xiaomi service center (addresses are available on the site mi.com).
• 📄 Save a check or warranty card - repair guaranteed free of charge.
• ⚠️ Don’t try to disassemble the phone yourself – it will deprive you of the guarantee.

If your Xiaomi is guaranteed, the service center is required to diagnose and fix the problem free of charge, the average repair time is 5-14 days.

FAQ: Frequent questions about the Internet problems on Xiaomi