A situation where a beloved smartphone suddenly loses wireless network connectivity or endlessly tries to obtain an IP address can be frustrating for any user. Device owners Xiaomi, Redmi And Poco We encounter this problem regularly, and often it's not a hardware failure, but a software conflict or operating system settings failure. MIUIBefore taking your device to a service center, it's worth performing a self-diagnosis, which in 90% of cases helps restore the connection.
Connection issues can range from a complete lack of available networks to a "Connected, no internet access" status. Sometimes your phone sees your neighbors' router but ignores your own, while other times you're connected but pages won't load. Understanding the nature of the problem is half the solution, as the solutions for authorization errors and DNS server issues are radically different.
In this article, we'll cover troubleshooting algorithms in detail, from simple reboots to complex manipulations of the engineering menu and static IP addresses. Important remember that software glitches in the shell Android are often resolved by correctly reconfiguring the network settings, rather than resetting the entire device.
Basic diagnostics and equipment testing
The first step is to rule out trivial causes related to the physical condition of the equipment or temporary freezes of the communication module. Often the module Wi-Fi The phone simply "sleeps" or crashes after a long system shutdown. Don't rush into deep settings until you've completed a basic reboot.
Unplug the router for 10-15 seconds, then plug it back in and wait for it to fully boot up. Restart your smartphone at the same time. XiaomiThis action clears the network services cache and forces the module to retry the handshake with the access point. If after these steps the phone still displays "Unable to connect," proceed to the next step.
⚠️ Attention: If your router has been running for more than 3-4 years without being replaced, it may not be able to handle the number of connected devices or the new encryption standards used by your updated phone. In this case, the problem may lie with the router, not the phone.
Check the Wi-Fi connection on other devices in the house. If your laptop or tablet works fine, the problem is localized to your phone. If the network isn't working anywhere, it's worth calling your provider or checking the integrity of the cable entering your apartment. It's also worth paying attention to the indicators on your router: a blinking Wi-Fi light usually indicates data transfer, while its absence indicates a problem.
Date, time, and region settings
One of the most common and overlooked reasons why Xiaomi It doesn't connect to Wi-Fi and the date and time are incorrect. Security protocols WPA2 And WPA3 They rely on certificates that have an expiration date. If the phone's date is in the past or future, handshake with the router is impossible due to certificate desynchronization.
Go to the menu Settings → Advanced → Date and TimeMake sure the "Use network time" switch is enabled. If the date is constantly reset even when the internet is enabled, the internal battery on the motherboard may be dead or there may be a serious software glitch. In this case, setting the time manually is only a temporary solution.
It's also worth checking your device's region. Some features and frequency bands may be blocked or not work correctly if the wrong region is selected in the settings. Go to Settings → Additional settings → Region and select your country, or, for testing purposes, try changing it to "India" or "China," as these markets often release early firmware versions with driver fixes.
Reset network settings and delete profiles
If basic methods don't help, it's likely that your phone's memory has accumulated "garbage" or there's a connection profile conflict. Operating system MIUI It keeps logs of all networks ever connected, and sometimes the priorities are assigned incorrectly. Clearing this data often restores connection stability.
First, try "Forgetting" the problematic network. Go to Settings → Wi-Fi, click the arrow next to your network name and select "Delete" or "Forget this network." Then, re-enter the password. This forces the phone to re-authorize and obtain a new IP address.
A more radical, yet effective, method is to completely reset your network settings. This won't delete your photos, contacts, or apps, but it will reset Bluetooth, mobile data, and Wi-Fi settings to factory defaults.
- 📱 Go to
Settings → Connection and Sharing. - 🗑️ Find the "Reset Wi-Fi, mobile networks, and Bluetooth" option.
- ✅ Confirm the action by entering your screen unlock password.
- 🔄 After the reset, the phone will reboot, and you will need to re-enter passwords for all Wi-Fi networks.
This method is especially useful if you have recently updated to a new version. Android or MIUI, and old configuration files stopped working correctly with the new system kernel.
IP and DNS issues
A common error users encounter is an endless process of obtaining an IP address or an "Authentication Error" message. This indicates that the phone is unable to correctly negotiate with the router to allocate an address on the local network. In such cases, switching to a static IP address can help.
In your Wi-Fi network settings, click the arrow or gear icon to expand the detailed menu. Find "IP Settings" (or "IP Settings") and toggle it off. DHCP on Static (Static). You will be prompted to enter the data manually.
Usually, it's enough to change only the last number in the IP address field. If the router address 192.168.1.1, then you can register it on the phone 192.168.1.128It is better to set public DNS servers from Google (8.8.8.8) or Cloudflare (1.1.1.1), as ISP DNS services are often slow or block some requests.
☑️ Checklist for setting up a static IP
Using a static IP also helps when the router "forgets" a device from its client list or assigns an address already taken by another device on the network. This is especially relevant for smart homes, where there may be a dozen or more devices.
2.4 GHz and 5 GHz frequency bands
Modern routers operate in two ranges: 2.4 GHz And 5 GHzThe 5 GHz band provides speeds, but has a shorter range and is less effective at penetrating walls. The 2.4 GHz band is slower but has a longer range. Older models Xiaomi or budget series Redmi may not support 5 GHz at all.
If your phone stopped seeing the network after setting up a new router, it's possible it's only broadcasting 5 GHz, and the phone's wireless module isn't detecting it. Or, conversely, the phone might be trying to connect to 5 GHz, but the signal is too weak due to the thickness of the walls.
| Parameter | 2.4 GHz | 5 GHz |
|---|---|---|
| Speed | Up to 150-300 Mbps | Up to 800+ Mbps |
| Penetration ability | High | Low |
| Workload | High (many neighbors) | Low |
| Compatibility | All devices | Only new smartphones |
Try separating the networks in your router settings by giving them different names (for example, Home_2.4 And Home_5). Then force your phone to connect to the 2.4 GHz network to check for stability. If the problem disappears, the phone's 5 GHz module is malfunctioning or the signal is too weak.
Why might 5 GHz not work?
Some budget Xiaomi models have a single-stream Wi-Fi module, which is physically unable to support high speeds and 802.11ac/ax standards, operating only in the 2.4 GHz range.
MIUI shell specifics and energy saving
shell MIUI (and its new version HyperOS) is known for its aggressive power-saving system. It can "kill" background processes responsible for scanning networks or maintaining connections, especially if the battery is low or power-saving mode is enabled.
Check your battery settings. Go to Settings → Battery → Settings (or the gear icon). Make sure that "Power Saver" mode is turned off. Also, in the list of applications, look for system services related to Wi-Fi (often called Wi-Fi Assistant or MIUI Optimization), and prohibit them from saving battery power.
Another feature is the "Wi-Fi Assistant" function, which automatically switches the phone to mobile data if it detects a weak Wi-Fi signal. This can create the illusion of a lost connection. Disable this function in the Wi-Fi → Wi-Fi Assistant menu.
⚠️ Attention: In newer versions of MIUI, the "Enable Wi-Fi even in sleep mode" option is hidden. If it's unavailable in the regular menu, it can be activated through the engineering menu by entering a code.
##6484##in the dialer, but only experienced users should do this.
Factory reset and reflashing
If none of the above methods help, the final step is a hard reset. This will delete all data from your phone, so be sure to back up your contacts, photos, and important documents to the cloud. Mi Cloud or to a computer.
Go to Settings → About phone → Factory data reset → Erase all dataAfter the reset, your phone will return to its "out of the box" state. Don't restore all apps from the backup at once. First, test Wi-Fi on a clean system. If the network works, the conflict was caused by one of the installed apps or accumulated system junk.
In rare cases, the problem lies with the firmware itself. If you're using the global version but live in a region with specific frequency standards, or vice versa, it might be worth considering updating to the latest firmware version through the official website. XiaomiHowever, this requires certain skills and caution.
Frequently Asked Questions (FAQ)
Why does Xiaomi say "Saved, protected" but won't connect?
This means the password is entered correctly, but the router is rejecting the connection. This is most often due to an incompatible encryption type (for example, a phone only supports WPA2, but the router is configured for WPA3) or a MAC address filter on the router that is blocking new devices.
My phone sees Wi-Fi, but the internet doesn't work. What should I do?
The problem is most likely with the DNS servers. Try setting a static DNS (8.8.8.8) in your Wi-Fi network settings. Also, check if a VPN or proxy is enabled on your phone, as this could block traffic.
Does resetting network settings help erase all data?
No, reset network settings (Reset Wi-Fi, Mobile Networks, and Bluetooth) only deletes saved Wi-Fi passwords, Bluetooth device passwords, and mobile internet APN settings. Your photos, contacts, and apps will remain intact.
Can a case interfere with Wi-Fi on a Xiaomi?
Yes, if your case has a metal base or a metalized coating, it can block the antenna signal, which is often located at the top or bottom of the case. Remove the case to check the reception quality.