Modern smartphones have long since ceased to be mere calling devices, becoming full-fledged digital control centers. One of the most popular use cases is the ability to quickly share mobile internet with a laptop, tablet, or another phone. Xiaomi and Redmi device owners often need to create a hotspot, but the default settings can hide useful optimizations.
WiFi distribution on Redmi is implemented via a built-in module access points, which operates reliably and supports modern encryption standards. However, depending on the version of MIUI or HyperOS, the menu layout and available features may differ. Understanding how a wireless network works will not only help you share the internet but also make the process secure and energy-efficient.
In this article, we'll cover all aspects of tethering in detail. You'll learn how to select the optimal frequency for maximum speed, hide your network from prying eyes, and extend your smartphone's battery life. We'll also cover technical nuances that are often overlooked, leading to slow connection speeds on connected devices.
Basic hotspot setup on Redmi
To get started, you need to activate the sharing mode itself. In most cases, this is done through the notification shade, but for initial setup, it's better to go to the deep system menu. Find the section Settings → Hotspot & tethering → Wi-Fi hotspotThis is where the key switches that control visibility and access to your internet are located.
The first thing you'll notice when opening the menu is the network name (SSID) and password. By default, the system generates a random name that includes the phone model, for example, Redmi Note 12Cybersecurity experts recommend changing this name to something neutral to avoid revealing the device model and Android version, which could make it easier for hackers to find vulnerabilities.
The password must be complex enough to prevent brute-force guessing, but easy to enter quickly by guests. Encryption standards are supported. WPA2-Personal and newer WPA3, if the client's device supports it. Using an open network without a password is highly discouraged, as all traffic from connected users will be visible in plaintext.
⚠️ Note: When you change your password, all previously connected devices will lose connection and will require re-authorization with the new data.
For quick access to basic functions, you can use the widget in the notification bar. However, if you need to change the frequency or adjust the data limit, you'll have to go to the full menu. This is a small price to pay for the flexibility of settings offered by MIUI.
Selectable frequency range: 2.4 GHz or 5 GHz
One of the most important settings for connection speed and stability is frequency band selection. The Redmi hotspot menu typically offers three options: 2.4 GHz, 5 GHz, and "Prefer 5 GHz." Understanding the difference between them is critical for proper network operation.
Range 2.4 GHz is the most compatible. It's supported by virtually every device released in the last 15 years, from older laptops to budget smartphones. However, this frequency is heavily congested: microwaves, Bluetooth headsets, and neighboring routers operate on it, creating interference and reducing actual speed.
In turn, the range 5 GHz Provides significantly higher throughput and is less susceptible to interference. If you plan to stream 4K video to a tablet or work with large files on a laptop, the choice is obvious. However, it's worth remembering that older devices may simply not see your network if you force it to use only 5 GHz.
The optimal solution for most users is automatic mode or manual switching depending on the task. If you're sharing internet with a laptop with a modern adapter, go ahead and enable 5 GHz. However, if you need to connect a car navigation system or a child's old tablet, it's better to stick with 2.4 GHz.
Setting up security and hiding the network
The security of your personal information when using public hotspots is a top priority. Redmi smartphones feature SSID hiding, which makes your network invisible to standard scanning by surrounding devices. You can only find and connect to such a network by manually entering the name.
To activate this feature, find the "Hide Device" or "Hide SSID" switch in the access point menu. Once enabled, your network name will no longer appear in neighbors' or passersby's lists of available Wi-Fi networks. This provides an additional layer of protection from prying eyes and unauthorized connection attempts.
However, hiding a network isn't a panacea. Experienced users with the right software can detect even hidden networks. Therefore, the main focus should be on strong passwordAvoid simple combinations like "12345678" or your date of birth. Use a mix of uppercase and lowercase letters, numbers, and special characters.
You can also configure a blacklist in the security menu. If you notice an unknown device in the list of connected clients, you can block its MAC address. This will prevent the device from connecting to your access point, even if you know the correct password.
| Parameter | Recommendation | Impact on safety |
|---|---|---|
| Encryption | WPA2/WPA3 | High (data protection) |
| SSID | Hidden | Average (protection against accidental) |
| Password | Complex (12+ characters) | Critical |
| Client limit | 1-3 devices | High (Access Control) |
Limiting connections and managing traffic
Mobile internet often has data or speed limits once the plan is exhausted. To prevent unexpected cost spikes from becoming a surprise, Redmi has a feature that limits the number of connected devices. By default, the system allows up to 10 connections, which is excessive for a mobile connection.
It is recommended to set the limit in Access point settings → Manage connected devices to device level 1-3. This will not only save data but also reduce the load on the smartphone's processor, reducing its heating. The more clients there are, the hotter the phone gets and the faster the battery drains.
Additionally, some firmware versions offer a data limit setting. You can set a limit, for example, 1 GB, after which the hotspot will automatically disconnect. This is excellent insurance against background updates on a connected laptop, which can eat up your entire data plan in an hour.
⚠️ Note: The menu interface may differ depending on your MIUI version. If you don't see the "Data Limit" option, check the "Security" section or use third-party apps to control your data usage.
Managing connected devices allows you to see in real time who is using your internet. You can see the device name and its MAC address. If the list contains unfamiliar devices, change the access point password immediately.
☑️ Access point security check
Connection problems and their solutions
Despite Android's stable operation, users sometimes encounter situations where their laptop or tablet doesn't detect the Redmi network or can't connect. Most often, the issue stems from incompatible encryption standards or frequency bands.
If your device doesn't see the network, try changing the band from 5 GHz to 2.4 GHz. Many older network adapters simply don't support the new frequencies. It's also worth checking if the SSID hiding option is enabled. In this case, you'll need to add the network manually, entering the name exactly as it's specified in your phone's settings.
Another common issue is the inability to obtain an IP address. This is often resolved by rebooting the WiFi module on both devices. Resetting the network settings on the receiving device also helps. In rare cases, a static IP address assigned to the client can cause a conflict; in this case, you should reset the IP settings to "Automatic" (DHCP).
If your phone's battery drains quickly while tethering, make sure the screen turns off. A bright screen combined with an active WiFi module and 4G/5G modem creates a peak load on the battery. Using Power Delivery charging while tethering will help offset the power drain.
What to do if the speed is very low?
If the speed is significantly lower than what your carrier claims, try changing the WiFi channel in the advanced settings (if available) or moving to an area with strong mobile network coverage (LTE/5G). Speed may also drop if your smartphone gets very hot.
Energy efficiency and battery life extension
Hotspot mode is one of the most power-hungry smartphone usage scenarios. The radio module simultaneously receives a cellular signal and transmits data via WiFi. This leads to intense heat generation and rapid battery drain.
To minimize power loss, experts recommend turning off the screen immediately after connecting to a client. It's also a good idea to disable background syncing of heavy apps on the phone itself to avoid putting additional strain on the processor. Using the dark theme (if the screen is AMOLED) also slightly reduces power consumption.
If you're planning a long internet sharing session, it's best to connect your smartphone to an external battery or charger. It's important to use the original cable and power supply, as cheaper alternatives may not be able to handle the current, resulting in even faster battery drain even when connected to the internet.
Some Redmi models have a special "Battery" mode or optimization in the section Settings → Battery → Power Saving, where you can limit background app activity. This will help allocate more resources to the communication module and extend battery life.
Why does the laptop see the network but not connect?
This is most often caused by a password error or security protocol incompatibility. Try temporarily setting a password without special characters. Also, check if your laptop's router or antivirus settings restrict access by MAC address.
Is it possible to share WiFi via USB cable?
Yes, it's on the menu. Access point and modem There's a "USB modem" option. This is a more stable and faster method that charges your phone simultaneously, but it only allows you to connect one device.
How many devices can connect to Redmi at the same time?
Technically, most Xiaomi smartphones support up to 10 simultaneous connections. However, for stable operation and high speed, it is recommended to limit the number of active clients to 3-4.
Does WiFi sharing affect mobile internet speed?
Yes, the speed is shared among all connected devices. Furthermore, the process of transmitting a WiFi signal places additional strain on the radio module, which may slightly increase ping in games.