Redmi and Realme smartphones continue to gain popularity, with more users than ever relying on their devices daily. However, one issue that frustrates many is the Wi-Fi auto-disconnect problem. Users often find that once their phone connects to Wi-Fi, it either disconnects after a short time or automatically switches to mobile data.
This issue has become especially common after updates like Android 15, Realme UI 6, and the latest MIUI updates. As a result, many users search online for solutions to the Redmi Wi-Fi disconnecting problem or Realme Wi-Fi issues. If you are facing this problem, this guide is here to help.
What is the Wi-Fi Auto Disconnect Issue?
Wi-Fi auto-disconnect occurs when your phone initially connects to a Wi-Fi network, and the internet works normally. Still, after a short period, the connection drops automatically without any warning.
This problem is usually caused by software glitches or network settings issues. Many users experience this issue in the following situations:
- Wi-Fi turns off when the screen locks
- Wi-Fi drops during video calls or online gaming
- Wi-Fi disconnects at night or when the phone is idle
- Wi-Fi icon appears connected, but there is no internet access
Understanding these common scenarios helps identify the root cause and apply the right fixes to maintain a stable Wi-Fi connection on Redmi and Realme devices.
Phone Having Wi-Fi Disconnection Problems
It’s important to understand that hardware problems rarely cause Wi-Fi auto-disconnect on Redmi and Realme phones. In most cases, the Wi-Fi chip is working perfectly, and the issue is due to software glitches or optimization problems.
This problem tends to appear more frequently on specific models:
Redmi Phones:
- Redmi Note Series
- Redmi Number Series (13 / 14 / 15)
- Redmi K Series
- Poco Phones (shares MIUI with Redmi, so similar issues occur)
Realme Phones:
- Realme Narzo Series
- Realme Number Series
- Realme GT Series
- Realme 5G Smartphones (especially after Android 15 updates)
Identifying whether your device falls into these categories helps you understand why Wi-Fi keeps disconnecting and which fixes are most likely to work.
Main Reasons for Redmi & Realme Wi-Fi Auto Disconnect
Several factors can trigger the Wi-Fi auto-disconnect problem on Redmi and Realme devices. Understanding these causes helps in applying the right fixes.
Android 15 / UI Update Bugs
New Android or UI updates often come with minor glitches. Users have reported that Android 15 and Realme UI 6 updates can cause Wi-Fi connection issues. The phone may misinterpret a stable Wi-Fi signal as weak, leading to unexpected disconnections.
Smart Wi-Fi / Auto Network Switching
Redmi and Realme devices feature options like Wi-Fi Assistant or Smart Network Switch, which automatically switch to mobile data if Wi-Fi is perceived as slow. Due to a software defect, this feature can repeatedly disconnect from Wi-Fi even when the network is stable.
Battery Optimization & Power Saving
Modern smartphones often use Wi-Fi sleep mode to save battery when the screen is off, limiting background connectivity. As a result, Wi-Fi may disconnect automatically on the lock screen or during idle periods.
Router Compatibility Problems
Not every router works seamlessly with all phones. After software updates, Wi-Fi connections may face:
- Frequent disconnections
- Conflicting stored Wi-Fi passwords
- Altered DNS settings
Common router-related causes include:
- Unstable 5GHz Wi-Fi signals
- Outdated router firmware
- Incorrect channel selection
- ISP-side network issues
- Corrupted network settings
By identifying the exact cause, you can apply targeted solutions to fix Wi-Fi auto disconnect issues on your Redmi or Realme device.
You Me Like It: Terms & Condition
Fix 1: Check for Software Updates (Most Important)
One of the simplest ways to resolve Wi-Fi auto-disconnect issues is to ensure your phone is running the latest software updates. Follow these steps:
- Open Settings on your Redmi or Realme device.
- Go to About Phone.
- Check for Software Updates – Make sure to look for any available updates.
- Install Updates Immediately – Download and install all pending updates, as they often contain fixes for Wi-Fi and connectivity issues.
- Restart Your Phone – After updating, reboot your device to ensure all changes take effect.
Keeping your phone updated often resolves glitches caused by Android 15, MIUI, or Realme UI 6, helping prevent Wi-Fi from unexpectedly disconnecting.
Fix 2: Reset Network Settings (Highly Recommended)
Resetting network settings is one of the most effective ways to resolve Wi-Fi auto-disconnect issues on Redmi and Realme phones. This process will remove saved Wi-Fi passwords but will not affect your personal data.
Steps to Reset Network Settings:
- Open Settings on your phone.
- Go to Connection & Sharing.
- Select Reset Wi-Fi, Mobile Network & Bluetooth.
- Tap Reset to confirm.
After the Reset, reconnect to your Wi-Fi network. This method often resolves issues caused by corrupted network settings, mismatches between routers, or software glitches.
Fix 3: Forget and Reconnect to Wi-Fi
Sometimes Wi-Fi auto-disconnect issues are caused by corrupted network configurations. Forgetting and reconnecting to your network can quickly fix this problem on Redmi and Realme phones.
Steps to Forget and Reconnect:
- Open Wi-Fi Settings on your device.
- Tap and hold the Wi-Fi network you are currently connected to.
- Select “Forget Network”.
- Restart your phone to refresh network settings.
- Reconnect to the Wi-Fi network by entering the password again.
This simple step often resolves issues caused by incorrect or corrupted network credentials, ensuring a stable Wi-Fi connection.
Fix 4: Disable Smart Wi-Fi / Auto Switch
On Redmi and Realme phones, features like Wi-Fi Assistant or Auto Network Switching can cause Wi-Fi to disconnect automatically, even when the network is stable. Turning off this feature often resolves the issue.
For Realme Users:
- Open Settings → Wi-Fi
- Go to Wi-Fi Assistant
- Turn OFF Auto Switch
For Redmi Users:
- Open Settings → Wi-Fi
- Go to Wi-Fi Assistant
- Turn off the feature
Turning off this option prevents your phone from automatically switching to mobile data, ensuring a stable Wi-Fi connection for browsing, gaming, or streaming.
Fix 5: Disable Battery Optimization
On Redmi and Realme phones, aggressive battery optimization can cause Wi-Fi to disconnect when the screen is off or the phone is idle. Adjusting these settings ensures your Wi-Fi remains active in the background.
Steps to Disable Wi-Fi Background Restrictions:
- Open Settings → Battery
- Go to App Battery Management
- Select System Apps or apps related to Wi-Fi services
- Choose “No Restrictions”
This step prevents the system from putting Wi-Fi to sleep, which is a common cause of Wi-Fi auto-disconnect issues, especially during standby or lock screen periods.
Fix 6: Router-Side Solutions
If your Redmi or Realme phone continues to experience Wi-Fi disconnections after trying all the previous fixes, the issue could be related to your router settings. Ensuring a stable connection often requires simple adjustments. Start by connecting to the 2.4GHz Wi-Fi band instead of 5GHz, as it generally offers better compatibility and stability with most smartphones. Next, restart your router to refresh the network and clear temporary glitches. You can also change the Wi-Fi channel to avoid interference from nearby networks, and update your router’s firmware to the latest version to fix any compatibility issues. For many users, making these changes is enough to resolve persistent Wi-Fi disconnections, providing a reliable and stable connection on Redmi and Realme devices.
Fix 7: Developer Setting (Advanced Users)
Step 7: Enable Developer Options to Improve Wi-Fi Stability
- Open Settings on your Redmi or Realme phone.
- Go to About Phone.
- Tap Build Number seven times to unlock Developer Options.
- Open Developer Options and adjust the following settings:
- Wi-Fi Scan Throttling → OFF
- Wi-Fi Verbose Logging → ON
These settings help create a more stable Wi-Fi environment and provide detailed diagnostics to prevent unexpected disconnections.
Step 8: Factory Reset as a Last Resort
If Wi-Fi issues persist after trying all previous steps, a factory reset can restore your phone to a clean software state.
Steps to Perform a Factory Reset:
- Back up all your important data.
- Open Settings → System → Reset Options → Erase All Data (Factory Reset).
- Confirm and wait for the phone to reset.
A factory reset removes hidden software bugs and conflicts, making it one of the most effective solutions for persistent Wi-Fi auto-disconnect issues on Redmi and Realme devices.
Should You Go to a Service Center?
While most Wi-Fi auto-disconnect issues on Redmi and Realme phones can be resolved with software fixes—accounting for roughly 90% of cases—there are situations where visiting a service center is necessary. You should consider professional help if your phone fails to connect to any Wi-Fi network, the problem persists even after performing a factory reset, or the device does not detect any Wi-Fi signals at all. In such cases, the issue may be a hardware malfunction, and a service center can properly diagnose and fix it.
Will a Permanent Fix Come in Future Updates?
Both Redmi and Realme actively collect user feedback and monitor community reports to identify common issues, including Wi-Fi auto-disconnect problems. The companies then address these bugs in subsequent stability updates, making it essential to keep your phone’s software up to date. Regular updates not only improve Wi-Fi stability but also enhance overall device performance and security, ensuring a smoother experience on Redmi and Realme devices.
Frequently Asked Questions
Why does my Redmi or Realme phone keep disconnecting from Wi-Fi?
Most Wi-Fi disconnections are caused by software glitches, system updates, or network settings issues, not hardware. Features like Smart Wi-Fi or battery optimization can also trigger automatic disconnects.
Does Android 15 or Realme UI 6 cause Wi-Fi disconnect issues?
Yes, updates such as Android 15, MIUI, or Realme UI 6 can introduce bugs that affect Wi-Fi stability. Installing the latest software updates usually resolves these issues.
How can I stop my phone from switching automatically to mobile data?
Disable Smart Wi-Fi or Auto Network Switching in your Wi-Fi settings. On Realme, go to Wi-Fi Assistant → Auto Switch OFF; on Redmi, go to Wi-Fi Assistant → Disable.
Will resetting network settings fix Wi-Fi auto-disconnect?
Yes, resetting Wi-Fi, Mobile Network & Bluetooth settings often resolves connectivity issues by clearing corrupted network configurations without affecting personal data.
Why does my Wi-Fi disconnect when the screen is off?
This is usually caused by battery optimization or Wi-Fi sleep mode, which limits background connectivity. Disabling restrictions for Wi-Fi-related system apps can prevent this.
How do I improve Wi-Fi stability using Developer Options?
Enable Developer Options and turn Wi-Fi Scan Throttling OFF and Wi-Fi Verbose Logging ON. These settings help maintain a more stable Wi-Fi connection and provide detailed diagnostics.
Can router settings cause Wi-Fi auto-disconnect?
Yes. Issues such as unstable 5GHz signals, outdated router firmware, incorrect Wi-Fi channels, or ISP problems can cause disconnects. Switching to 2.4 GHz, updating the firmware, and adjusting channels can help.
Conclusion
Experiencing Wi-Fi auto disconnect issues on Redmi and Realme phones can be frustrating, but in most cases, the problem is software-related and easily fixable. From updating your phone, resetting network settings, and disabling Smart Wi-Fi, to optimizing battery settings and router configurations, there are multiple effective solutions to maintain a stable Wi-Fi connection.