Modern smartphones such as Xiaomi Redmi 9TWhile smartphones offer a wide range of wireless connectivity options, initial setup or changing network settings can sometimes be challenging for users. The device runs MIUI, which has its own unique network management features that differ from stock Android. Understanding these nuances will allow you to not only quickly connect to the internet but also optimize the module for maximum speed.
In this article, we'll detail the process of connecting to a home or public network, as well as explore advanced settings hidden in the standard menu. You'll learn how to switch frequencies, manage your MAC address, and troubleshoot common connection errors. Connection stability directly impacts the quality of video calls, file download speeds, and online gaming, so proper configuration is critical.
Before making any changes to the system, make sure you're in a strong signal range from your router. It's also recommended to have your network password handy, as MIUI's security system requires confirmation the first time you connect to a new access point. If you've just factory reset your phone, this step will be the first after the initial language and time settings.
Basic wireless network connection
The process of activating the wireless module on Redmi 9T It's extremely simplified and takes just a few seconds. First, you need to unlock your smartphone's screen and find the gear icon, which represents the settings menu. It's usually located in the top corner of the home screen or in the notification shade if you swipe down. In the menu that opens, we're interested in the section labeled Wi-Fi.
After entering this section, the system will automatically begin scanning for available airwaves. You'll see a list of networks ranked by signal strength. Your network name (SSID) should appear in the list if the router is turned on and not hiding its presence. Click on the network name, and the system will prompt you for a password. Enter the security key, being careful of the case, and click the connect button.
- 📶 Make sure the Wi-Fi slider is in the active position (blue or green).
- 🔑 Check your keyboard layout when entering your password to avoid typing errors.
- 🔄 If the network is not found, drag the list down to force a refresh scan.
⚠️ Warning: When connecting to public networks in cafes or on public transport, the system may ask you to confirm your security certificate. Always confirm the name of the access point with the establishment's staff to avoid being targeted by a phishing hotspot.
After successful authorization, a signal strength icon will appear next to the network name, and a Wi-Fi symbol will appear in the status bar. Now your Redmi 9T Ready to use the internet. The system will remember this network and automatically connect to it in the future whenever you're within range of the router.
Works with 2.4 GHz and 5 GHz frequencies
Smartphone Xiaomi Redmi 9T Equipped with a dual-band wireless module, it operates in both the traditional 2.4 GHz band and the faster 5 GHz band. Choosing the right frequency can significantly impact data transfer speed and connection stability, especially in apartment buildings where the airwaves are heavily polluted by neighboring routers.
Range 2.4 GHz has a longer range and penetrates walls better, but it is often overloaded, which leads to a drop in speed. In turn, the frequency 5 GHz Provides high speed and minimal latency, but has a shorter range and is less effective at penetrating obstacles. By default, the phone automatically selects the optimal network, but you can control this process manually.
If your router broadcasts two different networks with the same name (Smart Connect technology) or with different names, you can select the preferred one. In the advanced Wi-Fi settings on MIUI, there's sometimes a "Prefer 5 GHz networks" option. Enabling this option will force your phone to ignore slower networks when a faster one is available.
What is the real speed difference?
The 2.4 GHz band rarely delivers more than 40-50 Mbps in real-world conditions due to interference. The 5 GHz band on the Redmi 9T can reach 300-400 Mbps and higher, depending on your ISP plan and router power.
To switch between networks manually, go to the list of available connections. If the router is configured correctly, you will see two names: for example, Home_WiFi And Home_WiFi_5GConnect to the desired name by entering the password. The phone will remember the connection priority for each name separately.
Advanced settings and MAC address
Modern versions of Android and the MIUI skin place a strong emphasis on privacy. By default, Redmi 9T Uses a randomized MAC address when connecting to new networks. This means the phone generates a random identifier for each new connection, protecting you from being tracked by hotspot operators.
However, in some cases, such as setting up parental controls or MAC address filtering on a router, it is necessary to use real MAC address Devices. If you're experiencing issues with your router blocking your phone from connecting to the network, you might want to change your privacy settings.
To change these settings:
- Go to
Settings → Wi-Fi. - Click the arrow next to the name of the network you are connected to (or want to configure).
- Find the item
Privacy. - Select
Use the device's MAC addressinstead of random.
⚠️ Note: Changing your MAC address type may require you to reconnect to the network. Make sure your router settings aren't set to a hard-coded, random address if you were previously using one.
Proxy server settings are also available in this menu. Unless you're using dedicated corporate networks or specific developer tools, leave this setting set to On. NoIncorrect proxy settings will result in complete loss of internet access, even if a connection to the router is established.
☑️ Check network settings
Setting up a static IP address
In most home use cases Redmi 9T Obtains an IP address automatically via the router's DHCP server. This is convenient and requires no user intervention. However, setting up a local network, configuring port forwarding, or connecting to network printers and NAS storage may require registration. static IP address.
To switch to static addressing, open the settings of a specific Wi-Fi network, as described in the previous section. In the field IP settings change the value from DHCP on StaticAfter this, fields for manual input of parameters will open.
You will need to enter the following data (example for the standard network 192.168.0.1):
- 🌐 IP address: A unique address within your subnet (e.g. 192.168.0.150).
- 🚪 Gateway: The IP address of your router (usually 192.168.0.1 or 192.168.1.1).
- 📏 Network prefix length: typically 24 (which corresponds to a mask of 255.255.255.0).
- 🔍 DNS 1 and DNS 2: you can leave them automatically or specify Google servers (8.8.8.8).
⚠️ Important: When manually entering an IP address, make sure it doesn't match the address of another device on the network. An address conflict will cause connection failure on both devices.
After entering all the parameters, click the save button (the checkmark in the upper right corner). Your phone will reconnect to the network with the new parameters. If the internet still doesn't work, check that you entered the gateway correctly—a single digit error will make the network unavailable.
Comparison of connection parameters
To better understand the differences between the operating modes, consider a comparison table of key characteristics. This will help you choose the optimal connection strategy for your use case. Redmi 9T.
| Parameter | Automatic (DHCP) | Static IP | Random MAC |
|---|---|---|---|
| Difficulty of setup | Minimum | Requires knowledge | By default |
| Security | Average | High (control) | High (anonymity) |
| Stability | Depends on the router | Maximum | It doesn't affect |
| Usage | Home, office, cafe | Local area network, games | Public networks |
As the table shows, automatic settings remain the optimal option for the average user. Static IP and manual MAC address are tools for specific tasks that require a basic understanding of network architecture.
Troubleshooting connection issues
Even with the correct setup, situations may arise when Redmi 9T The phone refuses to connect to Wi-Fi or the connection constantly drops. Most often, the problem isn't with the phone, but rather with a router settings conflict or a full network service cache.
First, try forgetting the network. Click on the network name in the list and select Delete or Forget the networkAfter this, reconnect by entering your password. This action clears any saved authorization errors.
If the problem persists, use the built-in diagnostic tool. The Wi-Fi menu often displays a warning that says "Connected, but no internet access." Click it, and the system will prompt you to run diagnostics. This will check for the IP address and the ability to ping Google servers.
In more complex cases, resetting network settings can help. Follow the path Settings → Connection and sharing → Reset Wi-Fi, mobile networks, and Bluetooth. This operation will delete all saved Wi-Fi passwords and other Bluetooth devices., so be prepared to re-enter them.
⚠️ Note: The settings interface may vary slightly depending on the MIUI version (12, 13, 14). If you can't find the item you're looking for, use the settings search by entering a keyword.
It's also worth checking whether Airplane Mode or Power Saving Mode is enabled, which could limit Wi-Fi activity in the background. Disable power saving for critical apps that require a constant connection.
Frequently Asked Questions (FAQ)
Why doesn't Redmi 9T see the 5 GHz network?
Make sure your router actually broadcasts a signal in this range and that it isn't disabled in the device settings. Your phone should also be close enough to the signal source, as 5 GHz has a shorter range.
How do I find the MAC address of my Redmi 9T?
Go to Settings → About phone → All settingsThe Wi-Fi MAC address will be listed there. Please note that it may be different for each network if randomization is enabled.
Is it possible to share Wi-Fi received via Wi-Fi?
On most Android devices, including MIUI, you cannot simultaneously receive and distribute the Internet via Wi-Fi. However, Redmi 9T It supports the Wi-Fi Repeater function in some firmware versions, but more often you will have to use a USB modem or Bluetooth.
What should I do if I get the message "Authentication Error"?
This means the password is incorrect. Click on the network, select "Forget," then connect again, carefully entering the security key. Check that Caps Lock is not enabled and that the correct keyboard layout is selected.
Does the theme affect Wi-Fi performance?
Third-party themes may contain errors in system interface files, which could potentially cause glitches in the settings menu. If you encounter problems after installing a theme, try reverting to the default design.