Xiaomi's Redmi series smartphones have long established themselves as reliable devices with excellent value for money, and the model Redmi 9A was no exception. Despite its budget segment, this gadget is equipped with all the necessary modules for comfortable use in the modern digital space, including a full-fledged Wi-Fi receiverHowever, as with any operating system, MIUI may encounter situations where a standard connection requires user intervention or deeper network configuration.
Activating a wireless connection on this device may seem trivial, but there are many nuances that affect connection stability and data transfer speed. Users often encounter issues where the phone detects the network but fails to connect, or the signal is too weak for apps to function properly. Properly setting up frequency bands and security protocols is critical, as the Redmi 9A supports both 2.4 GHz and 5 GHz networks, requiring careful consideration when choosing a router.
In this article, we'll cover every connection step in detail, from basic steps to complex manipulations of IP addressing and DNS servers. You'll learn how to troubleshoot common errors, why your phone might not detect your home network, and which hidden MIUI features can help improve connection quality. We'll cover both standard methods and advanced settings for experienced users looking to get the most out of their device.
Basic activation of the wireless module
The first thing you need to do to get started using the internet is activate the radio module itself. In the Android operating system, and specifically in the MIUI shell, this can be accomplished in two main ways, each with its own advantages depending on the situation. The fastest method is to use the control panel, which is accessed by swiping down from the top of the screen.
Look for an icon that looks like a fan or antenna with diverging waves. It's usually labeled as Wi-FiTap it once to turn on the module (the icon will turn blue or green), and hold your finger to access the settings menu. This method is ideal for quickly turning it on when you're in range of a known network.
- 📱 Quick access via the notification shade saves time.
- ⚙️ The full settings menu gives you access to advanced network options.
- 🔋 Automatic activation when unlocking the screen can be configured in the menu.
The second method involves going through the system menu. You need to find the application Settings, which looks like a gear. In the list that opens, select Wi-FiHere you will see a switch at the top of the screen. Move the slider to the position IncludedThe system will immediately begin scanning the surrounding area for available access points.
⚠️ Attention: If the Wi-Fi icon doesn't appear in the status bar within 10-15 seconds after turning the slider on, try restarting your device. In rare cases, the Redmi 9A may experience a software error with the wireless driver, which can only be resolved by restarting the system.
Once the module is activated, a list of available networks will appear on the screen. Network names (SSIDs) are displayed in a list, with a lock icon next to each network if it is password-protected. The signal strength is displayed graphically next to the network name. Select the desired network from the list to proceed with authorization.
Authorization process and password entry
After selecting your home or office network from the list, the system will prompt you to enter a security key. This is standard procedure for encryption protocols. WPA2 And WPA3, which are used by default in most routers. A virtual keyboard will appear in the input field. Be careful when entering characters, as the system is case-sensitive.
Enter the password provided by your ISP or the one you previously set in your router settings. After entering it, check your spelling, especially if the password uses similar characters (for example, zero and the letter O, or one and the letter I). Click the button Connect or Confirm to start the pairing procedure.
☑️ Check before connection
During the connection process, the phone exchanges data packets with the router to verify authentication. If the password is correct, the following text will appear under the network name: Connected, and the corresponding icon will light up in the status bar. If the credentials are incorrect, an error message will appear or the request will be repeated.
Users often forget that some routers have MAC address filtering enabled. In this case, even with the correct password, the Redmi 9A won't be able to access the internet. To resolve this, add your phone's MAC address to the router's whitelist. You can find your address in the Wi-Fi settings by clicking the arrow next to the network name.
Advanced Network Settings and IP Addressing
The default DHCP settings, which your phone receives automatically, are suitable for 95% of cases. However, on corporate networks or if there are specific restrictions from your ISP, manual IP address configuration may be required. To do this, in the Wi-Fi menu, tap your network name (or the arrow to the right of it) to open the detailed settings window.
Find the item IP settings and change the value from DHCP on StaticFields for manual data entry will open. It's important to avoid errors here, as an incorrect gateway or subnet mask will result in no internet connection, even if the router connection is formally established.
| Parameter | Description | Example of meaning |
|---|---|---|
| IP address | The unique address of a device on the network | 192.168.1.150 |
| Gateway | Router address (entry point) | 192.168.1.1 |
| Network prefix length | Subnet mask in short notation | 24 |
| DNS 1 | Primary Domain Name Server | 8.8.8.8 |
In the field IP address Typically, only the last digit is changed to avoid conflicts with other devices. The gateway should match your router's address. DNS servers can be left as automatic or specified using public addresses from Google (8.8.8.8) or Cloudflare (1.1.1.1) to speed up page loading.
Why change DNS?
Changing DNS servers to public ones (such as Google DNS or Cloudflare) often helps speed up website loading if your ISP uses slow proprietary servers. This can also help bypass ISP-level blocking of some resources, although complete bypass requires more complex tools.
After entering all the information, click the save button. Your phone will reconnect to the network with the new settings. If the internet still doesn't appear, check that the gateway is entered correctly—this is the most common error during manual setup.
Diagnosing connection problems
It's quite common for the Redmi 9A to see the network but not connect, or to see the "Obtaining IP address..." message intermittently. There could be several causes, ranging from the router's memory being full to an IP address conflict. The first step should always be to restart the Wi-Fi module: turn it off and then back on.
If this doesn't help, try deleting the network. In the list of available networks, click on the name of your network and select Delete or Forget the networkThen connect again, entering the password. This will clear any configuration cache errors.
- 🔄 Restarting the router often solves the problem of a frozen DHCP server.
- 📡 Check if the MAC address filter is enabled on your router.
- 🔐 Make sure the encryption type on your router is compatible with your phone (WPA2/WPA3).
Another possible cause is address overflow. If many devices are connected to the router, it may not be able to assign new IP addresses. In this case, rebooting the router can help, as this will clear the address lease table. It's also worth checking that the date and time on your phone aren't incorrect—clock desynchronization can block a secure connection.
⚠️ Attention: The MIUI settings interface may vary slightly depending on the firmware version. If you can't find the desired option, use the settings search (the magnifying glass at the top of the screen) and enter a keyword, such as "IP" or "MAC."
In some cases, resetting network settings helps. Go to Settings → Connection and sharing → Reset Wi-Fi, mobile networks, and BluetoothPlease note that this action will delete all saved Wi-Fi passwords and Bluetooth pairings, but it often resolves system connection issues.
Optimizing signal speed and stability
Redmi 9A owners should be aware that this smartphone supports two frequency bands: 2.4 GHz and 5 GHz. The 2.4 GHz band offers greater range but is more susceptible to interference from neighboring routers and household appliances. The 5 GHz band offers faster speeds but has poorer penetration through walls.
If your router is dual-band and distributes two networks with different names (for example, Home_2.4 And Home_5G), try connecting to a 5 GHz network while in the same room as the router. This will provide the maximum download speed. If the signal is unstable, switch to 2.4 GHz.
The position of the router's antennas and the phone itself also affects speed. Avoid covering the top of your smartphone with your hand while actively downloading files or playing online games, as this is where the antenna modules are located. Metal objects and mirrors between the phone and the router also significantly weaken the signal.
To improve reception, you can use special apps from the Play Market that analyze channel noise levels and recommend switching the router to a less congested channel. However, this requires access to the router's admin panel. You can enable the feature on your phone itself. Wi-Fi Assistant in the settings, which helps select the best network automatically.
Frequently Asked Questions (FAQ)
Why doesn't Redmi 9A see the 5 GHz network?
Your router may not be transmitting a 5 GHz signal, or your phone may be too far from the signal source. Also, check your router settings to make sure the network name (SSID) isn't hidden and that the second band is enabled. Make sure the region in your router settings matches yours, as different countries allow different channels.
How to find the Wi-Fi MAC address on Redmi 9A?
Go to Settings → About phone → All settings (or General settings). There will be a point Wi-Fi addressYou can also find it by going to the details of the connected Wi-Fi network.
The phone connects, but there is no internet. What's wrong?
The problem is most likely with your router or ISP. Check if the WAN indicator on your router is lit. Try connecting another device to the same Wi-Fi network. If you can connect to the internet on other devices, reset your phone's network settings.
Is it possible to share Wi-Fi with Redmi 9A?
Yes, the Redmi 9A supports the hotspot feature. Go to Settings → Connection & Sharing → Wi-Fi HotspotThere you can set up a network name and password to share mobile internet with other devices.