How to Share Wi-Fi from a Redmi 9 to a Laptop: 3 Working Methods + Troubleshooting

Transform Xiaomi Redmi 9 into a full-fledged router for a laptop is easier than it seems. A smartphone based on Android 10/11 with support mobile hotspot It can share the internet via Wi-Fi, a USB cable, or even Bluetooth—the key is to know the setup details. This guide will help you even if you're new to this feature. Modem mode or your laptop stubbornly does not see the created network.

We will analyze all the current methods of distributing the Internet with Redmi 9 (including models Redmi 9A/9C/9T), let's pay attention to typical mistakes like "Unable to turn on the access point" We'll also provide tips for optimizing your laptop's internet speed. A separate section is dedicated to alternative methods for when your smartphone's Wi-Fi isn't working or is limited by your data plan.

Before you begin, check two key points: availability of mobile Internet on your smartphone (4G/3G icon in the status bar) and sufficient battery charge (Wi-Fi sharing actively consumes energy). If you use a SIM card with limited data, keep in mind that the laptop may consume up to 1.5–2 GB per hour when watching a video or updating the system.

1. Sharing Wi-Fi via a mobile hotspot (the fastest way)

A standard method that works for everyone Redmi 9 regardless of the MIUI version. Suitable for sharing the internet with laptops running Windows, macOS, or Linux. The main advantage is high speed (up to 150 Mbps at a frequency of 2.4 Hz) and the ability to connect up to 10 devices simultaneously.

To activate the hotspot:

• 📱 Open Settings → Connections and Sharing → Personal Hotspot.
• 🔄 Toggle the slider Wi-Fi Hotspot in position On
• ⚙️ Click Setting up an access pointto ask:
  • Network name (SSID) - come up with something unique (for example, Redmi9_Hotspot).
  • Password — minimum 8 characters, use numbers and letters.
  • Security — choose WPA2-PSK (the most reliable option).
  • Range — 2.4 Hz for better compatibility with laptops.
• 💻 On your laptop, find the created network in the Wi-Fi list and connect by entering the password.

The smartphone is connected to the mobile Internet (4G/3G)

The access point is enabled and visible in the list of networks.

VPN is disabled on the laptop (it may block the connection)

Redmi 9 battery charge is above 30%

-->

If your laptop won't connect to the access point, try:

1. Restart your smartphone and laptop.
2. Make sure that on Redmi 9 there is no active VPN (disable it in Settings → VPN).
3. Reset network settings on a laptop:
   • Windows: Settings → Network & Internet → Network reset.
   • macOS: System Preferences → Network → Manage Networks → Remove Wi-Fi Service and add again.

2. Sharing the Internet via USB (a stable, but less versatile method)

This method is suitable if your laptop's Wi-Fi adapter is broken or you want to save battery power. Redmi 9. Data transfer speed via USB can reach up to 300 Mbps (when using a cable USB 2.0), and the smartphone's battery consumption is minimal, since it is powered by the laptop.

To configure:

• 🔌 Connect Redmi 9 to the laptop with the original USB cable (cheap cables may not transmit data).
• 📱 On your smartphone, go to Settings → Connections and Sharing → Personal Hotspot.
• 🔄 Turn on the option USB modem.
• 💻 Wait for the drivers to install on your laptop (Windows usually does this automatically).
• 🌐 Check your internet connection - a network icon with the inscription should appear in the tray "Connected".

⚠️ Attention: Some mobile operators (eg Tele2 or Iota) may block the USB modem or charge additional fees for internet tethering. Before using, check the plan terms in your personal account.

3. Sharing the Internet via Bluetooth (an alternative if Wi-Fi and USB are unavailable)

A less popular but working method is to use Bluetooth modem. The speed will be lower (up to 30 Mbps), but the method works even if the smartphone's Wi-Fi module or USB port is broken. It's also suitable for laptops without a Wi-Fi adapter (rare, but common in older models).

Instructions:

1. 📱 On Redmi 9 Turn on Bluetooth in the notification shade or through Settings → Connected devices → Bluetooth.
2. 💻 Activate Bluetooth on your laptop and make it visible to other devices.
3. 🔗 On your smartphone, find your laptop in the list of available devices and connect (you may need to confirm the code on both devices).
4. 📶 Return to Settings → Connections and Sharing → Personal Hotspot and turn it on Bluetooth modem.
5. 🌐 The connection should appear in the list of networks on your laptop Network connection via Bluetooth.

Limitations of the method:

• ⚡ Low speed - good enough for instant messaging and email, but not for 4K video.
• 🔋 High battery consumption on both devices.
• 📶 Operating radius - no more than 10 meters (under ideal conditions).

Wi-Fi hotspot|USB modem|Bluetooth|I don't use data sharing-->

4. Troubleshooting Wi-Fi Sharing Errors on Redmi 9

Even with proper setup, problems can still arise. Let's look at the most common ones and how to fix them.

Error: "Failed to enable access point"

Most often occurs due to:

• 📵 No mobile internet (check your balance and APN settings).
• 🔄 Conflict with VPN or firewall (disable them temporarily).
• 📱 MIUI malfunction (restarting or resetting network settings helps).

If the problem persists, try:

Settings → Apps → Manage apps → Three dots (menu) → Reset app preferences

The laptop connects to Wi-Fi, but the internet doesn't work.

Possible causes and solutions:

The access point turns off by itself after a few minutes.

This is a typical problem. Redmi 9 On MIUI 12 and later, related to power saving. Solutions:

1. Turn it off Adaptive Battery V Settings → Battery → Battery settings.
2. Add an application Modem mode in optimization exceptions:

   Settings → Apps → Manage apps → Three dots → Special access → Battery optimization → All apps → Tethering & portable hotspot → No restrictions

3. If it doesn't help, use third-party applications like NetShare or PdaNet+ (require root rights).

5. Optimizing distribution speed and stability

To distribute the Internet with Redmi 9 To ensure it works as efficiently as possible, follow these tips:

• 📶 Select the correct Wi-Fi channel:
  • In urban areas it is better to use canals 1, 6 or 11 (less busy).
  • In rural areas you can try Channel 13 (if it is allowed in your country).
• 🔋 Save battery life:
  • Connect your smartphone to a charger while distributing.
  • Turn it off "Search for Wi-Fi in sleep mode" in the Wi-Fi settings.
  • Reduce screen brightness to minimum.
• 🛡️ Secure your hotspot:
  • Use a complex password (at least 12 characters).
  • Turn it off Auto-connection for unknown devices.
  • Change your password regularly if you share the Internet in public places.

⚠️ Attention: If you are distributing the Internet with Redmi 9 through a mobile operator, keep in mind that some tariffs have restrictions on traffic for distribution (the so-called "tetring"). For example, MTS or Beeline there may be a limit in 10 GB for a hotspot, even if the main traffic is unlimited. Exceeding the limit leads to a reduction in speed to 64 kbps.

To check your current traffic usage:

Settings → SIM cards and mobile networks → Data usage

6. Alternative methods of distributing the Internet (if standard ones don’t work)

If none of the methods described worked, try these options:

Using third-party applications

Apps like NetShare or ClockworkMod Tether allow you to bypass operator restrictions on internet sharing. The downside is that many require root rights or work unstably on new versions of Android.

Popular apps:

• 📲 PdaNet+ — supports USB and Bluetooth, bypasses operator blocks.
• 📲 FoxFi - simple interface, but may not work on MIUI.
• 📲 Portable Wi-Fi Hotspot — an alternative to the standard hotspot.

Sharing via an OTG adapter (for advanced users)

If you have USB OTG adapter and an external Wi-Fi adapter, you can organize distribution like this:

1. Connect the Wi-Fi adapter to Redmi 9 via OTG.
2. Set up Internet Sharing via USB (as in section 2).
3. Connect your laptop to the Wi-Fi adapter, which now functions as an external modem.

This method is complicated to set up, but provides a more stable connection than your smartphone's built-in Wi-Fi.

Using a laptop as a repeater

If you have access to another Wi-Fi network (for example, in a cafe), but need to share it with several devices:

1. Connect Redmi 9 to this Wi-Fi network.
2. Turn it on on your smartphone Tethering → Wi-Fi Hotspot.
3. Connect your laptop to the access point Redmi 9, and then turn it on Internet Sharing in Windows settings (Settings → Network & Internet → Mobile Hotspot).

Thus, the laptop will "distribute" the Internet from Redmi 9 to other devices.

7. Comparison of distribution methods: which one to choose?

To determine the optimal method, we will evaluate each one based on key parameters:

🔹 Choose a Wi-Fi hotspot, If you need maximum compatibility and speed across multiple devices.

🔹 USB modem Ideal for long-term use of a laptop (for example, for remote work or online gaming).

🔹 Bluetooth - This is a backup option when other methods are not available.

FAQ: Frequently asked questions about Wi-Fi sharing with the Redmi 9

sudo nano /etc/resolv.conf
nameserver 8.8.8.8
nameserver 8.8.4.4