The situation where a Xiaomi smartphone suddenly stops detecting a wireless network or gets stuck on the "Obtaining IP Address" status is familiar to many users of the MIUI and HyperOS ecosystem. This isn't just a minor inconvenience, but a serious glitch that can be caused by either a software conflict in the operating system or incompatible router settings. Often, the problem stems from energy saving algorithms Xiaomi aggressively limits background network activity in an attempt to save battery life.
Owners of Redmi, POCO, and flagship Mi series devices regularly encounter this issue after firmware updates or changing internet providers. It's important to understand that the system Android The Xiaomi shell has its own unique network packet processing features. If your Xiaomi phone isn't connecting to Wi-Fi, the first step is to rule out common causes, but often, a thorough tweak of static parameters or resetting network protocols is required.
This article will help you diagnose a problem, whether it is a malfunction DHCP servers router or frequency band conflict. We'll cover specific steps that will restore the connection in 95% of cases without calling a service center.
Basic diagnostics and reboot of network modules
Before delving into deeper settings, it's necessary to perform a "reboot cycle," which clears the network service cache. Often, a Xiaomi phone won't connect to Wi-Fi because a frozen background process, which is responsible for scanning for available access points, is stuck. Simply turning off the screen won't help; a full device reboot or a forced Wi-Fi restart is required.
Try to activate Airplane mode for 10-15 seconds, and then turn it off. This action forcibly (breaks) all radio communication channels and forces the modem to re-register with the network. If this does not help, go to Settings → Wi-Fi, click the gear icon next to your network and select "Remove this network" (Forget network). Then, re-enter the password, carefully checking your keyboard layout.
⚠️ Caution: If the router has been running continuously for several months, it may have exhausted its internal memory. Be sure to unplug the router's power cord for 30 seconds before turning it on.
Sometimes the issue is temporary and related to overheating of the communication module. If your Xiaomi phone won't connect to Wi-Fi after prolonged navigation or gaming, let the device cool down. In rare cases, resetting the network settings helps, but this will delete all saved Bluetooth and Wi-Fi passwords.
Problems with DHCP and obtaining an IP address
One of the most common reasons why a Xiaomi phone gets stuck at the “Obtaining IP Address” stage is a protocol conflict or failure. DHCPThe router simply doesn't assign an address to the device, or the assigned address conflicts with another device on the network. In such cases, manually entering a static IP address is often the only viable solution.
To set up a static address, go to the Wi-Fi menu, click on your network and select "IP Settings" (or "IP Parameters"). Change the value from DHCP on StaticYou will need to enter the IP address, gateway, and DNS. Typically, the router's IP address (gateway) is located on a sticker on the bottom of the device, most often 192.168.0.1 or 192.168.1.1.
⚠️ Note: When manually entering the IP address, ensure the last digit (host) is between 2 and 254 and isn't occupied by another device. For example, if your router has the address 192.168.1.1, you could assign 192.168.1.55 to your phone.
It is also worth trying to register reliable DNS servers, for example, from Google (8.8.8.8) or Cloudflare (1.1.1.1). This not only solves the connection issue but can also speed up webpage loading. If your Xiaomi phone stops connecting to Wi-Fi after changing the router, it's likely that the new router is assigning addresses on a different subnet, and the old static IP is no longer relevant.
Wi-Fi frequency band and channel conflicts
Modern routers operate in two ranges: 2.4 GHz And 5 GHzOlder or budget Xiaomi phones may not support 5 GHz, or, conversely, may attempt to connect to it with a weak antenna. If the router broadcasts a network with the same name (SSID) for both bands, the phone may "jump" between them, never establishing a stable connection.
It is recommended to separate networks in the router settings by giving them different names, for example, HomeWiFi And HomeWiFi_5GTry connecting to a 2.4 GHz network, as it has better penetration through walls. It's also important to check that the channel isn't congested. If your neighbors' routers are on the same channel, interference will occur.
In the router settings (Wireless Settings section), try changing the channel from Auto to a fixed one (for example, 1, 6, or 11 for 2.4 GHz). For the 5 GHz band, choose channels 36, 40, 44, or 48, as they are the most stable in most regions.
| Parameter | 2.4 GHz band | 5 GHz band |
|---|---|---|
| Speed | Up to 150-300 Mbps | Up to 800+ Mbps |
| Range | High (up to 50 m) | Medium (up to 20 m) |
| Penetration | Good | Low (the walls muffle the sound) |
| Stability | Low (a lot of interference) | High |
⚠️ Note: Router and phone interfaces are subject to update. If you don't find the specified channel settings, check the official manual for your router model, as the menu layout may vary.
What is channel width and how does it affect?
Channel width (20/40/80 MHz) determines the "thickness" of the data pipeline. A wide channel (80 MHz) provides high speeds but is highly susceptible to interference in apartment buildings. If your Xiaomi Wi-Fi signal is poor, try setting the channel width to 20 MHz for the 2.4 GHz band in your router settings—this will improve connection stability.
MIUI and HyperOS power saving settings
Xiaomi skins are notorious for their aggressive battery optimization, which often kills background processes, including the Wi-Fi module. If your Xiaomi phone doesn't connect to Wi-Fi automatically after waking up from sleep, this is the problem. The system cuts off power to the antenna to save battery life and can't quickly restore the connection.
You need to configure power saving mode for Wi-Fi system services. Go to Settings → Battery → App power (or through the Security app). Find "Wi-Fi" or network-related system services in the list and set them to "Unrestricted." This will prevent the system from disabling the communication module.
It's also worth disabling the "Wi-Fi Assistant" or "Switch to Mobile Data" feature if your Wi-Fi signal is weak. This feature can constantly drop the connection while trying to find a "better" network. Go to the advanced Wi-Fi settings and make sure the "Use mobile data when Wi-Fi is unstable" switch is turned off.
- 🔋 Disable "Ultra Power Saving" if it's active—it blocks many network functions.
- 📡 Enable "Always available scanning" in the geolocation settings; this helps the module find networks faster.
- 🔄 Reset network settings:
Settings → Connection and sharing → Reset Wi-Fi, mobile networks, and Bluetooth.
Security Features and MAC Filtering
In modern versions of Android (starting with version 10), MAC address randomization is enabled by default. When connecting, the phone appears to the router as a new device with a unique identifier. If the router has MAC address filtering (whitelisting) configured, the Xiaomi phone will not be able to connect to Wi-Fi, as its "new" address is not on the allowed list.
To fix this, go to your Wi-Fi network settings on your phone and find "Privacy" or "MAC Address Type." Change the setting from "Random MAC" to "Device MAC Address" (or "Use Device MAC"). After this, the router will see the device's default identifier and allow it to connect to the network.
Also, check the encryption type. Xiaomi may not connect to the network if the router uses an outdated protocol. WEP or, on the contrary, too new WPA3, which the phone doesn't yet support. The optimal option is mixed mode. WPA2/WPA3 Personal or pure WPA2-PSK (AES).
☑️ Security Checklist
Resetting settings and hardware failures
If software methods don't help and your Xiaomi phone won't connect to Wi-Fi at all (the Wi-Fi button may be grayed out or inactive), a deep system crash or firmware corruption may have occurred. In this case, a hard reset is an effective solution. Keep in mind that this will delete all data from your phone, so make a backup first.
To perform a reset, go to Settings → About phone → Factory data reset → Erase all dataIf the menu is unavailable, you can use Recovery Mode: turn off the phone, press and hold the Volume Up button and the Power button, then select Wipe DataAfter resetting, the phone will return to its factory state, and problems with Wi-Fi drivers often disappear.
In the worst case, when Wi-Fi doesn't turn on or immediately turns off even after a firmware update or reset, there's a hardware problem. This could be a broken antenna cable (often after a fall) or a burned-out Wi-Fi module on the board. In such cases, diagnostics at a service center are required.
Frequently Asked Questions (FAQ)
Why does my Xiaomi phone connect to Wi-Fi, but the internet doesn't work?
Most often, this is a DNS or date issue. Check if automatic time detection is set. Also, try entering the DNS 8.8.8.8 in the Wi-Fi settings. Sometimes the router freezes and requires a reboot, even if other devices are working fine.
Can a magnetic case affect Wi-Fi signal?
Yes, if your case has metal inserts or magnets located near the antenna modules (usually at the top or bottom of the case), they may interfere and slow down the connection or cause disconnects.
What should I do if Wi-Fi only works near the router?
This is a sign of antenna degradation or software limiting the signal strength. Try it in the engineering menu (code ##6484##) Check the signal strength. If the hardware is fine, updating the firmware or changing the region in the phone settings might help.
Does full phone memory affect Wi-Fi performance?
Indirectly, yes. If the system partition or RAM is critically full, the operating system may malfunction with network services, dropping connections or not launching the Wi-Fi module.