If your Xiaomi phone keeps disconnecting from Wi-Fi, you’re not alone. Many MIUI users face this issue due to battery optimization settings, network conflicts, or software glitches. Fortunately, MIUI provides several built-in options to fix frequent Wi-Fi disconnections quickly. In this guide, we’ll walk you through step-by-step solutions to stabilize your wireless connection on Xiaomi phones.

1. Restart Your Router and Xiaomi Phone

Before changing any settings, start with the simplest fix: restart both your router and your phone.

  1. Turn off your router and wait at least 30 seconds before turning it back on.

  2. On your Xiaomi phone, hold the Power button → Restart.

  3. After rebooting, reconnect to your Wi-Fi network via Settings → Wi-Fi.

Often, temporary IP or signal issues cause frequent drops, and restarting clears them.

2. Forget and Reconnect to Your Wi-Fi Network

Sometimes saved Wi-Fi credentials become corrupted. Reconnecting can help:

  1. Open Settings → Wi-Fi.

  2. Tap your connected Wi-Fi name.

  3. Select Forget network.

  4. Reconnect by entering your password again.

💡 Tip: Make sure you’re connecting to the correct frequency band — 2.4GHz networks provide a more stable connection, while 5GHz is faster but has shorter range.

3. Disable Battery Saver or Performance Modes

MIUI’s Battery Saver feature can automatically cut off Wi-Fi when your phone is idle.

To prevent that:

  1. Go to Settings → Battery → Battery saver.

  2. Tap the gear icon ⚙️ → Battery saver for apps.

  3. Find “Settings” and “System UI,” then choose No restrictions.

Also, disable Ultra Battery Saver if it’s enabled — it restricts background connectivity.

4. Reset Network Settings

If the Wi-Fi issue persists, reset your network configurations:

  1. Go to Settings → Connection & sharing → Reset Wi-Fi, mobile networks, and Bluetooth.

  2. Tap Reset settings → Confirm.

  3. Reboot your phone and reconnect to your Wi-Fi.

This clears old DNS caches, IP settings, and Wi-Fi profiles that might be conflicting.

5. Turn Off Wi-Fi Assistant and Dual Channel Acceleration

MIUI includes features that automatically switch between mobile data and Wi-Fi, which can cause disconnects.

  1. Go to Settings → Connection & sharing → Wi-Fi Assistant.

  2. Turn off:

    • “Switch automatically between Wi-Fi and mobile networks.”

    • “Dual channel acceleration.”

This ensures your phone stays connected to Wi-Fi without sudden data switching.

6. Update MIUI and Router Firmware

Outdated system software can also cause instability.

  1. Go to Settings → About phone → MIUI version.

  2. Tap Check for updates and install any available update.

  3. Also, log in to your router’s admin page and make sure it’s running the latest firmware.

Updating both devices often resolves compatibility and connection issues.

7. Advanced Fix: Change DNS Server

You can manually set a more reliable DNS, such as Google DNS or Cloudflare:

  1. Go to Settings → Wi-Fi → (your Wi-Fi name) → IP settings → Static.

  2. Enter:

    • DNS 1: 8.8.8.8

    • DNS 2: 8.8.4.4

  3. Save and reconnect.

8. Final Tip

If none of the above steps work, perform a factory reset (after backing up your data). Persistent issues might also indicate hardware problems with your Wi-Fi antenna — in that case, visit a Mi Service Center.

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