If your Xiaomi phone keeps disconnecting from Wi-Fi, you’re not alone. Many Xiaomi, Redmi, and POCO users report that their phone drops the Wi-Fi signal even when the router works perfectly. In most cases, this problem isn’t caused by hardware — it’s due to MIUI’s network management settings.
MIUI includes a feature called Wi-Fi Assistant, designed to automatically switch between Wi-Fi and mobile data for a stable connection. However, this feature sometimes misbehaves and causes your phone to disconnect when the Wi-Fi signal temporarily weakens.
To fix this, disable automatic switching:
Step-by-step:
Open Settings on your Xiaomi phone.
Tap Wi-Fi.
Select Wi-Fi Assistant (or Additional settings, depending on your 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)
After this, your phone will stay connected even when the signal is slightly weak.
Another common cause is MIUI’s battery optimization. When Battery Saver is active, it may restrict background Wi-Fi usage.
To disable this:
Go to Settings › Battery › Battery saver.
Tap the app you use for Wi-Fi (for example, YouTube or Browser).
Select No restrictions.
Tip: Avoid using Ultra Battery Saver mode if you often rely on Wi-Fi for calls or streaming.
Xiaomi frequently fixes Wi-Fi bugs in MIUI updates.
Check for updates by going to:
Settings › About phone › MIUI version › Check for updates.
If your router is old, update its firmware from the manufacturer’s admin page — sometimes both devices need syncing.
If Wi-Fi keeps disconnecting even after changing settings, try resetting your network:
How to reset network settings:
Go to Settings › Connection & sharing.
Tap Reset Wi-Fi, mobile networks, and Bluetooth.
Confirm the reset, then reconnect to your Wi-Fi network.
This clears out cached IP addresses and saved configurations that might be conflicting.
Sometimes the simplest fix works best.
Steps:
Go to Settings › Wi-Fi › [Your Network].
Tap Forget network.
Reconnect by entering your Wi-Fi password again.
If the problem persists, reboot your router and ensure your device’s MAC address filtering isn’t blocking the phone.
If your Xiaomi Wi-Fi keeps disconnecting, it’s usually a software issue — not a faulty antenna. Disabling Wi-Fi Assistant, turning off aggressive battery saving, and resetting network settings solve the issue for most users.
Keep your MIUI up to date, and your Xiaomi, Redmi, or POCO phone will maintain a stable Wi-Fi connection with no random dropouts.
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