Introduction

One of the most common complaints among Xiaomi smartphone users is Wi-Fi disconnecting automatically. This issue can disrupt streaming, work, online gaming, or even simple browsing. While it might seem like a hardware problem, in most cases, the root cause is misconfigured MIUI settings.

If you’ve noticed that your Xiaomi, Redmi, or POCO phone frequently disconnects from Wi-Fi without any action on your part, this guide will help you fix the problem in most scenarios. We’ll cover the main reasons for disconnection, step-by-step solutions, and additional tips to maintain a stable and reliable Wi-Fi connection.

Why Does Xiaomi Disconnect from Wi-Fi?

In most cases, automatic Wi-Fi disconnections are caused by MIUI’s network optimization settings. Xiaomi phones are designed to connect automatically to the strongest available network. While this can be convenient, it can also cause your device to switch networks or disconnect entirely when the Wi-Fi signal fluctuates.

Other possible causes include:

  • Conflicts with certain apps that manage Wi-Fi or data usage.

  • Misconfigured network settings, especially after a system update.

  • Battery-saving or performance optimization modes that limit background connectivity.

  • Temporary glitches in the router or phone firmware.

Step-by-Step Guide: Disable Automatic Network Switching

One of the most effective ways to stop your Xiaomi phone from disconnecting from Wi-Fi is by disabling the automatic network selection feature.

Step 1: Open Wi-Fi Settings

  • Go to Settings → Wi-Fi on your Xiaomi device.

Step 2: Access Wi-Fi Assistant

  • Scroll down to Wi-Fi Assistant and tap to open it.

Step 3: Disable Automatic Network Selection

  • Look for the option “Select the best network automatically” and turn it off.

  • This prevents your device from switching to mobile data or another network whenever the Wi-Fi signal dips.

By performing these steps, you can fix one of the most frequent issues with Xiaomi phones — automatic Wi-Fi disconnection due to MIUI’s default configuration.

Additional Troubleshooting Tips

If the problem persists after disabling automatic network selection, try the following solutions:

1. Check for Misconfigured Settings

  • Review any custom Wi-Fi configurations you may have applied.

  • Reset advanced network settings like static IP addresses or DNS modifications.

2. Disable Third-Party Apps That Affect Wi-Fi

  • Some apps, especially VPNs, firewall apps, or battery optimization tools, can interfere with Wi-Fi connectivity.

  • Temporarily disable or uninstall these apps to see if the issue resolves.

3. Restart Your Router and Phone

  • A simple restart can resolve temporary glitches.

  • Turn off your Wi-Fi router for 30 seconds, then power it back on.

  • Reboot your Xiaomi device to refresh the network connection.

4. Reset Network Settings

  • Go to Settings → Additional Settings → Backup & Reset → Reset Network Settings.

  • This will reset Wi-Fi, Bluetooth, and mobile data settings without deleting personal data.

5. Perform a Factory Reset (Last Resort)

  • If none of the above solutions work, a factory reset may be necessary.

  • Back up your data first.

  • Go to Settings → About Phone → Factory Reset to restore the device to default MIUI settings.

Preventive Tips for Stable Wi-Fi on Xiaomi Devices

To minimize Wi-Fi disconnection problems in the future:

  1. Keep MIUI Updated: Xiaomi regularly releases updates that improve system stability.

  2. Avoid Battery Optimization for Wi-Fi: Some power-saving modes may restrict background Wi-Fi activity.

  3. Use Reliable Wi-Fi Networks: Unstable or overloaded networks increase the chance of disconnections.

  4. Monitor Router Settings: Ensure that your router firmware is up-to-date and that no devices are blocking the Xiaomi device.

Conclusion

Wi-Fi disconnections on Xiaomi, Redmi, and POCO phones are often caused by misconfigured MIUI settings rather than hardware problems. By following the steps outlined above — disabling automatic network switching, reviewing third-party apps, resetting network settings, and updating firmware — you can achieve a stable and reliable Wi-Fi connection.

Regularly monitoring both your phone and router settings ensures that your Xiaomi device maintains connectivity, making it easier to stream videos, browse the internet, and use online applications without interruption.

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