Why Xiaomi is Slow Internet: Reasons and Solution

Xiaomi smartphone users often face a situation where the stated connection speeds do not match the real figures. Instead of instant page loading and streaming video in 4K, you get long buffers and connection timeouts. This is especially annoying, given that modern flagships and even budget models of the brand are equipped with advanced communication modules.

The causes of low speed can be hidden as in software failures of the shell MIUI or HyperOS, or in the hardware constraints of a particular receiver. Signal interference, incorrect settings DNS-Wi-Fi servers or errors are just some of the factors that make fast internet a “slow torture".

In this article, we will discuss the technical aspects of the operation of network modules in Xiaomi smartphones, we will look in detail at the settings that by default can limit speed, and how to optimize them.

Hardware restrictions and Wi-Fi module

The first thing to consider is the physical characteristics of your device's antenna module. Budget models of the Redmi or POCO series often feature single-threaded receivers that cannot physically deliver high speeds in noisy air. The channel capacity is directly dependent on the Wi-Fi class of the module installed on the board.

Also, support for frequency bands is important. If your router is spreading the Internet at 2.4 GHz, and your smartphone only supports 802.11n, the speed will be limited by the physical limits of this standard. In apartment buildings, the air at this frequency is heavily congested with neighboring routers and Bluetooth devices.

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Use Wi-Fi network analysis apps (such as Wi-Fi Analyzer) to see how congested your router’s channel is with neighbors.

Also worth mentioning is thermal throttling, which is that when you load large files for a long time, the modem gets hotter, and the system can artificially reduce its performance to protect against overheating, and thermoregulation is an important aspect that is overlooked in speed testing.

DNS settings and frequency ranges

One of the most common reasons for the slow operation of the Internet on Xiaomi is the use of standard Internet devices. DNS-They're often overloaded or have high response times. DNS Google or Cloudflare can significantly speed up website openings.

To change the settings, go to Settings → Wi-Fi → Click on the arrow next to the network → DNS settings. Here, choose Manual and write down the addresses of trusted servers. This is especially effective if the pages load long, but the files are downloaded at a normal speed.

The second important parameter is frequency range. Modern routers often include combining the 2.4 GHz and 5 GHz bands under one name. Xiaomi's smartphone can "cling" to the longer-range but slower 2.4 GHz, even when near the router. Forced switching to 5 GHz solves the speed problem near the signal source.

Program conflicts and background processes

The MIUI shell and the new HyperOS are known for aggressive memory management, but sometimes the system’s background processes can eat up the entire channel.Mi Cloud services, gallery synchronization or application updates in the background can unnoticed by the user utilize all available bandwidth.

You can check network connection activity through the built-in traffic monitor. Go to Security → Traffic → Statistics. Here you will see a list of the applications that use the network the most. Often, it turns out that some forgotten application is constantly updating content.

• 📱 System Updates: Check if the package is background loading MIUI/HyperOS.
• ☁️ Cloud sync: Photos and videos can be uploaded to the cloud when connected to Wi-Fi.
• 🔄 Auto-Update Apps: Google Play or GetApps can download game updates.

Another factor is the VPN or proxy, and if you have a VPN enabled with a free server, your Internet speed is guaranteed to drop, and some optimizers and memory cleaners have their own network filters that can slow down the connection.

Resetting network and modem settings

If the software settings are lost or the modem configuration has accumulated errors, the most effective solution is to completely reset the network settings, which will return the Wi-Fi, Bluetooth and mobile network settings to factory values by removing all saved passwords and profiles.

Resets can be done via the Settings path → Connection and Sharing → Reset Wi-Fi, mobile networks and Bluetooth. After the reboot, the smartphone will re-run handshake with the base station or router, which often eliminates problems with sticking at low speeds.

⚠️ Note: Resetting network settings will remove all saved passwords from Wi-Fi and Bluetooth pairs. Make sure you remember keys to important access points before performing this operation.

In some cases, switching the network mode in the engineering menu helps, but it requires caution. For ordinary users, a standard reset is enough, which eliminates 90% of the software glitches of the TCP/IP protocol stack.

Comparison of Connection Standards

To understand what to expect from your device, it is useful to compare the theoretical and practical speeds of different communication standards. Real speeds are always lower than claimed due to protocol overhead and interference.

As you can see from the table, switching to Wi-Fi 6 will give you a multiple of the performance, but only if your router and ISP tariff support such speeds. On older routers, even the most powerful Xiaomi will not be able to give more than the hardware allows.

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The maximum speed of the Internet is limited by the weakest link in the chain: provider → router → smartphone antenna.

The Impact of Android Version and Firmware

Internet problems often arise after an operating system update, a new version of Android or the MIUI shell may contain bugs in the Wi-Fi drivers, especially on global firmware versions (Global ROM), which are released later than the Chinese ones.

If the problem appears immediately after the update, it makes sense to wait for the release of the patch or roll back to the previous version of the software. It is also worth checking whether the Wi-Fi Assistant feature is turned on, which automatically switches the smartphone to mobile Internet if Wi-Fi seems to her “slow”.

The settings are in the Settings menu → Wi-Fi → Wi-Fi Assistant – Sometimes this feature doesn’t work properly, constantly pulling the connection back and forth, creating the illusion of an unstable and slow Internet connection.

⚠️ Attention: Downgrade may cause data loss and require an unlocked bootloader.

Mobile Internet problems (4G/5G)

When it comes to mobile internet, carrier coverage and frequency support comes into play with your smartphone. Xiaomi often releases international versions with a stripped-down band compared to the Chinese versions. If your carrier uses a rare frequency (such as the Band 20 or Band 7) and the smartphone does not support it, the speed will be low.

You can check the supported frequencies in the engineering menu or specialized applications like Cellular-Z. SIM-Maps: Old cards, hand-carved or issued years ago, may not work properly with networks 4G/LTE-Advanced.

• 📶 Signal Level: Even 4 sticks do not guarantee high speed if the signal quality is not high (SINR) low-key.
• 🏗️ Tower loading: In the evening, the speed drops due to the large number of users.
• 📱 Settings APN: Incorrect access points can limit speed.

To correct the situation with APN You need to go to Settings. → SIM-maps and mobile networks → Choice SIM-map → Access points (APN). You can reset to standard settings or enter the settings recommended by your operator. Often, automatic settings may not be optimized.

Frequently Asked Questions (FAQ)