How to Fix Wi-Fi Disconnection Issues on Xiaomi Phones (MIUI Step-by-Step Guide)

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🔹 Why Xiaomi Phones Disconnect from Wi-Fi Automatically

One of the most frustrating issues for Xiaomi, Redmi, and POCO users is when the Wi-Fi keeps disconnecting automatically — especially while streaming, gaming, or downloading updates.

In most cases, this isn’t a hardware problem but rather a MIUI configuration issue.
The built-in “Wi-Fi Assistant” feature is designed to automatically switch between Wi-Fi and mobile data to maintain a stable internet connection.
However, on many Xiaomi devices, this causes random Wi-Fi dropouts even when the network is fine.

Did you know? For a complete guide on this topic, check out the Xiaomi Learning Hub and explore related tips in the Connectivity & Network Topic Hub.

🔹 Step-by-Step: Stop Xiaomi from Disconnecting Automatically

Follow these exact steps to keep your Wi-Fi connection stable:

Step 1: Open Wi-Fi Assistant Settings

Open Settings.
Tap Wi-Fi.
Scroll down and select Additional settings (on MIUI 13 and above, it may appear as “Wi-Fi Assistant”).
→ Menu path:
Settings › Wi-Fi › Wi-Fi Assistant

Step 2: Disable Network Auto-Switching

In the Wi-Fi Assistant menu, find “Select best networks automatically” or “Switch to mobile data when Wi-Fi is unstable.”
Turn this option off.

This setting forces MIUI to stay connected to your current Wi-Fi network, even if the signal weakens temporarily.

🔹 Step-by-Step (Alternative MIUI Versions)

Depending on your MIUI version, the path might differ slightly:

MIUI 14 or later:
Settings › Connection & sharing › Wi-Fi Assistant › Disable “Switch to mobile data automatically.”
Older MIUI (11–12):
Settings › Wi-Fi › Advanced settings › Turn off “Automatically switch to mobile data.”

🔹 Additional Fixes if Wi-Fi Still Disconnects

If turning off Wi-Fi Assistant doesn’t solve it, try these in order:

1. Forget and Reconnect to Your Wi-Fi Network

Go to Settings › Wi-Fi › [Your Network] › Forget Network
Then reconnect and re-enter the password.

2. Reset Network Settings

Open Settings › Connection & sharing › Reset Wi-Fi, mobile networks, and Bluetooth.

This clears any corrupted network profiles that can trigger disconnections.

3. Turn Off Battery Saver for Wi-Fi Apps

Go to Settings › Battery › Battery saver › [App name] › No restrictions.

Some Xiaomi power-saving modes can pause Wi-Fi connections in the background.

4. Update MIUI

Go to Settings › About phone › MIUI version › Check for updates.

Xiaomi frequently patches network bugs through system updates.

5. (Last Resort) Factory Reset

If nothing else works:

Backup your data to Mi Cloud or a PC.
Go to Settings › About phone › Factory reset › Erase all data.

🔹 Pro Tips to Maintain a Stable Wi-Fi Connection

✅ Keep your router firmware updated.
✅ Avoid using battery saver during long downloads or streaming.
✅ Don’t enable both “Dual Wi-Fi Acceleration” and “Data switching” simultaneously.
✅ Reboot your router once a week to refresh the IP lease.

🔹 Summary: Quick Fix Checklist

Step	Action	Path
1	Disable “Switch to mobile data”	Settings › Wi-Fi › Wi-Fi Assistant
2	Forget & reconnect	Settings › Wi-Fi › [Your Network]
3	Reset network settings	Settings › Connection & sharing › Reset Wi-Fi…
4	Update MIUI	Settings › About phone › MIUI version
5	Factory reset (optional)	Settings › About phone › Factory reset

Following these steps eliminates automatic Wi-Fi disconnections on most Xiaomi, Redmi, and POCO phones and keeps your connection stable.