Many users are familiar with the problem of unstable wireless connections on Xiaomi devices, as MIUI and HyperOS have their own power-saving features. Owners often encounter situations where the router is in the next room, but the signal is lost or the speed drops to a crawl. This can be caused by both software limitations and incorrect router settings.
In this article, we'll explore a comprehensive approach to solving the problem, from basic checks to advanced engineering menu manipulation. Connection optimization Requires a consistent process of eliminating factors that interfere with the module's normal operation. Don't ignore even simple steps, as sometimes the cause lies in a simple software glitch.
Modern Xiaomi smartphones are equipped with powerful antenna modules, but aggressive battery-saving policies often prevent them from fully functioning in the background. Understanding how the system distributes resources between apps and network services will help you configure your device correctly. Let's look at the basic methods that will allow you to Get stable ping in games and high download speeds without the need to purchase new equipment.
Basic diagnostics and service restart
Before delving into deeper settings, it's important to rule out basic software errors. Over time, the Android operating system accumulates a cache of network services, which can lead to IP address conflicts or Wi-Fi driver freezes. The first step should always be a full device reboot, not just turning off the screen.
It's also worth checking whether airplane mode or other restrictive features are accidentally enabled. Sometimes the problem lies in the phone being stuck on a congested channel and refusing to switch to a clearer one. In this case, manually disconnecting and reconnecting can help.
If simple methods don't help, try resetting your network settings. This will delete all saved Wi-Fi passwords and Bluetooth settings, but it often resolves issues with constant disconnects. After this procedure, your phone will scan for networks completely clear, without any old configuration files.
- 🔄 Perform a full reboot of your smartphone through the shutdown menu.
- ✈️ Toggle Airplane Mode on and off to reset the radio modules.
- 🗑️ Use the "Reset Wi-Fi, mobile networks, and Bluetooth" feature in Settings.
⚠️ Note: Resetting network settings will also delete saved pairs of Bluetooth devices (headphones, watches), so you will need to pair them again.
Setting up the 2.4 GHz and 5 GHz bands
One of the most common causes of slow speeds is a smartphone operating on the 2.4 GHz frequency in noisy environments. This range has good penetration, but it's heavily congested with neighboring routers, microwave ovens, and Bluetooth headsets. For Xiaomi devices, which often have sensitive antennas, switching to 5 GHz can be crucial.
The 5 GHz band offers higher data transfer rates and is less susceptible to interference, but has a shorter range. If your router is dual-band, make sure the networks have different names (SSIDs) so you can force the router to select the correct one. Modern Xiaomi models have a "Wi-Fi Assistant" feature that attempts to automatically select the best network, but it doesn't always work correctly.
In the developer settings, you can find a setting that forces frequency priority. This is especially relevant for older routers, which may not properly negotiate protocols with newer smartphones. However, it's worth remembering that at 5 GHz, the signal has poor penetration through thick concrete walls.
- 📡 Separate the names of the 2.4 GHz and 5 GHz networks in the router settings.
- 🔌 Connect to the 5 GHz network while in the same room as your router.
- ⚙️ Check the "Wi-Fi Assistant" settings in your smartphone's Wi-Fi menu.
Using the 5 GHz frequency allows for real-world speeds close to those advertised by the provider, especially if the plan exceeds 100 Mbps. At the 2.4 GHz frequency, it is physically impossible to achieve speeds above 40-50 Mbps in a real-world apartment building due to packet collisions.
Changing DNS and IP settings
A common cause of slow page loading times even with a good signal strength is your ISP's slow DNS servers. Xiaomi smartphones default to DNS retrieved automatically from the router, which isn't always optimal. Changing these addresses to public and fast servers from Google or Cloudflare can significantly speed up website response times.
To change the settings, go to the Wi-Fi menu, click on the arrow next to your network name, and find the "IP Settings" item. Switch the value from DHCP on Static, you can manually enter DNS addresses. This won't increase the maximum link speed, but it will reduce delays when establishing a connection to servers.
Additionally, Android 9 and later, including MIUI skins, feature "Private DNS." It encrypts requests and often bypasses blocking or traffic boosters that ISPs may implement. Enabling this feature in connection settings can sometimes work wonders for unstable YouTube or Instagram.
| DNS provider | Server Address (Primary) | Server address (Secondary) | Peculiarities |
|---|---|---|---|
| Google Public DNS | 8.8.8.8 | 8.8.4.4 | High stability |
| Cloudflare | 1.1.1.1 | 1.0.0.1 | Maximum speed |
| Quad9 | 9.9.9.9 | 149.112.112.112 | Security and malware blocking |
When manually entering the IP address, make sure you don't change the gateway, otherwise the internet will simply stop working. Typically, the gateway is your router's address, often 192.168.0.1 or 192.168.1.1. Change only the DNS1 and DNS2 fields.
⚠️ Attention: If after changing the DNS, local resources (for example, printing on a network printer or accessing a NAS) stop opening, return the settings to "Automatic (DHCP)".
MIUI power saving optimization
MIUI and the new HyperOS are known for their aggressive memory and power management. The system can "kill" the process responsible for maintaining a stable Wi-Fi connection when the screen goes dark. This results in delayed notifications and a time-consuming reconnection when the phone is turned on.
To fix this, find the app you want to run in the background (such as messengers or torrent clients) and enable unlimited background running in the battery settings. There's also a hidden engineer menu where you can disable Wi-Fi in sleep mode.
In the "Security" -> "Battery" -> "Settings" (gear icon) -> "Standby power saving," select "Do not limit" or a similar option if available in your firmware version. This will allow the Wi-Fi module to operate at full capacity even when the phone is in your pocket.
- 🔋 Open battery settings for important apps.
- ✅ Select "Unlimited" mode for background activity.
- 🔒 Disable power saving for Google Play system services.
How to access the Xiaomi engineering menu?
Dial the code in the dialer ##6484##In the menu that opens, select "Wireless" or "Wi-Fi," then find "Wi-Fi sleep policy" and set it to "Never" or "Always on." The code may vary depending on your Android model and version.
Resetting network settings and reflashing the module
If software adjustments don't help, the network stack configuration files may be corrupted. In this case, a full reset of network settings, as we mentioned earlier, can help, but with a more thorough approach. Sometimes, it's necessary to delete specific network profiles that contain erroneous security settings.
In rare cases, the issue is related to a specific firmware version. Check for system updates. Xiaomi frequently releases patches that fix Wi-Fi module bugs. If you're using the global firmware version on a Chinese device (or vice versa), frequency band conflicts may occur.
Advanced users can reset the antenna calibration through the engineering menu, but this requires caution. A regular user can simply run a command in the terminal (root required) or use specialized applications to reset network tables, but standard tools are usually sufficient.
☑️ Checklist before reset
Please note that the settings interface may differ slightly depending on the version of MIUI (12, 13, 14) or HyperOS. If you can't find the item, try searching through the settings by entering the keyword "Wi-Fi" or "Network."
Hardware limitations and external factors
Don't forget about the hardware either. Cases with a metal back or magnetic rings for car mounts can shield the antenna signal, which in Xiaomi phones is often located at the top or bottom of the case. Removing the case can instantly boost the signal strength by 10-15 dBm.
It's also worth checking to see if your smartphone is overheating. At high temperatures, the processor and modem may throttle frequencies or reduce transmission power to protect components. If the phone is hot to the touch, let it cool down and check the connection quality again.
In older Xiaomi models, the antenna module could simply become dislodged from its contacts when dropped. If the phone was dropped and Wi-Fi only works when placed close to the router, you may need to disassemble and press the antenna connector.
⚠️ Please note: Thick protective glass with a metal frame around the perimeter can also create a Faraday cage effect, significantly weakening the wireless signal.
Frequently Asked Questions (FAQ)
Why does Xiaomi see Wi-Fi but not connect?
Most often, this is an IP address conflict or an incorrect password stored in memory. Try "Forget Network" and re-enter the password. Also, check if your router is using MAC address filtering.
How to increase Wi-Fi speed on a Xiaomi device using the engineering menu?
In the engineering menu (##6484##) You can try changing the Wi-Fi region to the US or India, where more powerful transmitters are allowed, but this may be illegal in your country and interfere with the operation of the device.
Does having Bluetooth enabled affect Wi-Fi speed?
Yes, since both modules operate in the 2.4 GHz band. When actively using Bluetooth (headphones, trackers), Wi-Fi speeds on the 2.4 GHz band may drop. The solution is to switch to 5 GHz.
Should I install third-party apps to speed up my Wi-Fi?
No, most of them simply reset your network settings, which you can do yourself. Moreover, such apps often contain ads and can slow down your system.