One of the most common issues on Xiaomi smartphones is Wi-Fi disconnecting automatically. This can be frustrating and is often caused by improper MIUI configuration.
If you have a Xiaomi, Redmi, or POCO device and notice that your phone occasionally disconnects from Wi-Fi without action, this guide will show you how to fix it in most cases.
Why Xiaomi Disconnects from Wi-Fi
Although other factors can sometimes cause Wi-Fi issues, in most cases, automatic disconnection happens due to MIUI settings—especially the automatic switching to networks with stronger signals.
How to Prevent Xiaomi from Disconnecting Automatically
If your Xiaomi phone disconnects automatically when Wi-Fi signal weakens, it may be due to “Switch to mobile data when Wi-Fi is unstable”. To disable this:
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Go to Settings > Wi-Fi > Wi-Fi Assistant
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Turn off “Select best networks automatically”
This simple step fixes one of the most frequent Wi-Fi problems on Xiaomi smartphones: automatic disconnection caused by MIUI misconfiguration.
Additional Tips
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Check if any apps are overriding Wi-Fi settings
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Review other network-related configurations you may have changed
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As a last resort, consider performing a factory reset on your device
Following these steps ensures that your Xiaomi phone maintains a stable Wi-Fi connection and minimizes unnecessary disconnections.

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