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

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Wi-Fi disconnections are one of the most common frustrations on Xiaomi, Redmi, and POCO devices. Even with a strong signal, your phone may drop the connection due to MIUI’s network management settings. This guide explains why it happens and how to fix it.

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.

🔹 1. Check Wi-Fi Assistant Settings

MIUI’s Wi-Fi Assistant automatically switches your phone from Wi-Fi to mobile data when it detects an unstable network. While helpful in theory, it often causes random disconnections.

Steps to disable it:

Open Settings.
Tap Wi-Fi.
Select Wi-Fi Assistant (or Additional settings, depending on MIUI version).
Turn off “Switch to mobile data when Wi-Fi is unstable” or “Select best networks automatically.”

Menu path:
Settings › Wi-Fi › Wi-Fi Assistant › Switch to mobile data automatically (disable)

🔹 2. Adjust Battery Saver Restrictions

MIUI battery-saving features may pause Wi-Fi connections in the background.

Steps:

Go to Settings › Battery › Battery saver.
Select the apps that use Wi-Fi heavily.
Choose No restrictions.

Avoid Ultra Battery Saver, which can disable Wi-Fi completely.

🔹 3. Update MIUI to the Latest Version

Network bugs are frequently fixed with MIUI updates. Check your system version:

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

Installing the latest firmware ensures network stability.

🔹 4. Reset Network Settings

If Wi-Fi still disconnects, a network reset can solve corrupted configurations.

Steps:

Go to Settings › Connection & sharing.
Tap Reset Wi-Fi, mobile networks, and Bluetooth.
Reconnect to your Wi-Fi network afterward.

🔹 5. Forget and Reconnect Wi-Fi Networks

Sometimes, simply reconnecting fixes the problem:

Open Settings › Wi-Fi › [Your Network].
Tap Forget network.
Re-enter the password to reconnect.
Reboot your router if needed.

🔹 6. Pro Tips for a Stable Connection

Keep your router firmware up to date.
Disable Dual Wi-Fi Acceleration and Mobile Data Switching simultaneously.
Reboot your router periodically.
Avoid extreme distances or walls that block Wi-Fi signals.

🔹 FAQ (Optional Schema for Google)

Q1: Why does my Xiaomi phone keep disconnecting from Wi-Fi?
A1: Most often, MIUI’s Wi-Fi Assistant automatically switches to mobile data. Disable “Switch to mobile data automatically” to maintain a stable connection.

Q2: Where is Wi-Fi Assistant on Xiaomi phones?
A2: Go to Settings › Wi-Fi › Wi-Fi Assistant (MIUI 13+). On older MIUI versions, check Settings › Connection & sharing › Wi-Fi Assistant.

Q3: How do I reset network settings on Xiaomi?
A3: Navigate to Settings › Connection & sharing › Reset Wi-Fi, mobile networks, and Bluetooth.

Q4: Does battery saver affect Wi-Fi?
A4: Yes. MIUI battery optimization can pause background Wi-Fi. Disable restrictions on critical apps to prevent disconnects.

🔹 Final Thoughts

By disabling Wi-Fi Assistant, adjusting battery optimization, updating MIUI, and resetting network settings, most Xiaomi, Redmi, and POCO users can eliminate random Wi-Fi disconnections. Following these steps ensures a stable, reliable, and uninterrupted Wi-Fi experience.