Smartphones of the line Xiaomi Redmi have gained popularity due to their excellent price-to-performance ratio, but the initial setup of a wireless connection sometimes raises questions for new owners. Model Redmi 9T equipped with modern communication modules that support standards Wi-Fi 5 and dual-band operation, ensuring a stable internet connection for streaming and gaming. Proper network configuration during initial setup ensures seamless connection in the future.
The process of activating the wireless module in the shell MIUI or new HyperOS It's as automated as possible, but it does require careful entry of passwords and selection of security protocols. The user must not only find the network in the list but also ensure that the phone is using the optimal frequency range for the current signal conditions. In this guide, we'll cover all the details, from basic connection to advanced DNS and static IP settings.
Basic wireless network connection
The initial activation of the communication module occurs through the quick access panel or the system settings menu. The fastest way is to swipe down from the top of the screen to open the "Shutter" and tap the icon. Wi-FiOnce the indicator turns blue, your smartphone will automatically search for available access points within range. If the router is operating in standard mode, your network name (SSID) will appear in the list of available connections.
To connect, tap your network name. If the network is password-protected, which is the security standard, WPA2/WPA3, the system will ask you to enter the access key. Enter the password carefully, observing the letter case, as the system Android Sensitive to character errors. After entering, click the "Connect" button and wait until "Connected" appears under the network name.
⚠️ Note: If the status changes to "Authentication Error" after entering the correct password, try forgetting the network in the Wi-Fi settings menu and re-entering the details, as there may have been an encryption key caching error.
In some cases, especially in multi-apartment buildings, the list of networks can be overwhelming, and finding the right one can take time. If your network isn't immediately visible, make sure the router is turned on and the lights on its case are lit or flashing appropriately. It's also worth checking whether the router has hidden network mode enabled, which we'll discuss below.
Advanced settings and static IP
For users who require finer control over their network connection, the shell MIUI Provides access to advanced settings. To access this menu, click the arrow next to the name of the connected network or select "Wi-Fi Settings" in the main menu. Here you can switch IP settings from automatic. DHCP to static, which is useful for organizing a local network or port forwarding.
When choosing a static address, you will need to manually enter the device's IP address, gateway (usually the router's address, such as 192.168.0.1 or 192.16.1.1), network prefix length, and DNS servers. Using public DNS, such as Google DNS (8.8.8.8) or Cloudflare (1.1.1.1), can speed up the system response when opening websites and increase the stability of the connection in case of problems with the provider.
Why change DNS on your phone?
Changing DNS servers to alternative ones (such as Google or Cloudflare) often helps speed up page loading if your ISP uses slow servers. This can also help bypass ISP-level blocking of some resources, although completely bypassing restrictions requires other tools.
In this section you can also manage the function Wi-Fi Assistant (Wi-Fi Assistant). This feature allows your phone to automatically switch to mobile data if the wireless signal becomes too weak for comfortable use. To save data, it's best to keep this option disabled unless you're sure your mobile plan offers unlimited data.
Working with hidden networks and the 5 GHz band
Modern routers often operate in two ranges: 2.4 GHz And 5 GHzThe Redmi 9T supports both standards, allowing you to choose between long-range (2.4 GHz) and high-speed (5 GHz). If your router broadcasts two networks with different names, simply select the one labeled "5G" or "5 GHz" for maximum data transfer speeds near the router.
If the network name is hidden by the administrator for security reasons, it will not appear in the general list. To connect, scroll to the bottom of the list of available networks and select "Add network" or "Connect to another network." In the window that opens, manually enter the exact network name (SSID), select the type of protection (usually WPA/WPA2-Personal) and enter the password.
| Parameter | 2.4 GHz band | 5 GHz band |
|---|---|---|
| Transfer speed | Up to 300-450 Mbps | Up to 867+ Mbps |
| Range of action | High (breaks through walls) | Average (poor at overcoming obstacles) |
| Workload | High (many neighboring networks) | Low (less interference) |
| Ideal for | Smart home, web surfing | 4K video, online games |
If you're in a distant room behind several concrete walls, your phone may automatically switch to 2.4 GHz or lose connection. In the Wi-Fi menu, you can see the signal strength as bars; for stable performance, it's recommended to have at least 3 bars out of 4.
Troubleshooting connection issues and resetting settings
Even with proper configuration, the Redmi 9T may still refuse to connect or continually lose network connectivity. The first step should always be to restart the Wi-Fi module: disable it in the notification shade, wait 5-10 seconds, and then enable it again. If this doesn't help, perform a full reboot of the smartphone, as temporary network service errors may have accumulated in the RAM.
If the problem persists, deleting the network profile is an effective solution. Go to Wi-Fi settings, tap your network name, and select "Delete" or "Forget Network." Then try connecting again, re-entering the password. This clears saved encryption keys and forces the phone to re-establish a handshake with the router.
⚠️ Important: Before resetting all network settings, make sure you remember the passwords for all Wi-Fi networks you have previously connected to, as they will be completely deleted from the device's memory.
As a last resort, if none of the above methods work, you can use the reset network settings function. It's located along the path Settings → Connection and sharing → Reset Wi-Fi, mobile networks, and BluetoothThis operation won't affect your personal files, photos, or contacts, but it will reset all network settings to factory defaults, which often resolves software conflicts.
☑️ Diagnosing Wi-Fi problems
Speed optimization and energy saving
System Android on smartphones Xiaomi has aggressive power-saving algorithms that can limit Wi-Fi activity in the background. To allow apps to download data when the screen is off (such as messaging apps or email), you need to adjust battery settings. Go to Settings → Battery & Performance and find the application that should run in the background.
In the app settings, select "Unlimited" mode or ensure the "Power Saver" option isn't blocking network activity. There's also a "High Performance Mode" feature in the Wi-Fi menu, which is worth enabling if you use your phone for online gaming or watching high-definition videos. This will prevent the phone from reducing antenna power to save battery life.
Another factor that can affect speed is a full DNS cache or date and time conflicts. Make sure that these are set correctly in your settings. Date and time Automatic synchronization is enabled. Incorrect time can lead to security certificate errors, causing browsers and apps to refuse to connect to servers, creating the illusion of Wi-Fi problems.
How VPNs Affect Wi-Fi Speed
Having a VPN enabled can significantly reduce your internet speed and increase ping in games. If you notice a drop in speed, try temporarily disabling your VPN and checking your speed again.
Frequently asked questions and additional recommendations
Redmi 9T owners often inquire about the communication module's performance in specific conditions. For example, the phone supports the standard Wi-Fi Direct, allowing you to transfer files between devices without a router. A hotspot feature is also available, turning your smartphone into a fully-fledged router for distributing mobile internet to other devices.
When using public networks in cafes or shopping malls, it's recommended not to enter confidential information or conduct banking transactions. Even if the network is password-protected, your traffic can be intercepted. For additional security in such areas, it's helpful to use VPN tunneling, although this will reduce overall connection speed.
⚠️ Attention: The menu interface and item names may differ slightly depending on the version of the installed MIUI shell (12, 13, 14) or transitional HyperOS, as well as the regional firmware (Global, EU, Russia).
Regularly update your phone's firmware via the menu About phone → MIUI version Often contains Wi-Fi module bug fixes. If you haven't updated your system in a while, installing a new version may resolve compatibility issues with modern routers and encryption protocols.
Frequently Asked Questions (FAQ)
Why doesn't the Redmi 9T see the 5 GHz network, even though the router is broadcasting it?
It's possible that the 5 GHz channel in your router settings is set to values that aren't supported in your region or by your Wi-Fi module. Try changing the channel in your router settings to 36, 40, 44, or 48, and ensure that the channel width is set to 20/40/80 MHz.
How do I enable display of a hidden network if I know the password?
In the Wi-Fi menu, scroll down to "Other" or "Add network." Enter the exact network name (SSID), select the security type (usually WPA/WPA2), and enter the password. Your phone will automatically find the hidden network by name.
Is it possible to speed up Wi-Fi on the Redmi 9T without changing the router?
Yes, you can try changing the DNS servers in the Wi-Fi settings to fast ones (for example, 1.1.1.1), disabling power saving for network modules, and making sure that the phone is connected to the 5 GHz band if it is close to the router.
What to do if Wi-Fi keeps disconnecting on its own?
Check your Wi-Fi sleep settings (it should be "Never"), disable the "Wi-Fi Assistant" feature, which can switch to a mobile network when the signal is weak, and try resetting the network settings in the phone menu.