The Redmi and Realme smartphones are quite trendy and more people are using the phones than ever before. However, a problem that is irritating to many users is that Wi-Fi disconnects automatically. Once it is connected to Wi-Fi, the phone is not connected for a duration or automatically switches to mobile data.
The problem is largely observed following the updates to Android 15, Realme UI 6, and the recent MIUI updates. Due to this fact, numerous users seek solutions to such issues as Redmi Wi-Fi disconnecting or Realme Wi-Fi issue on the web. This article will assist you, should you also be experiencing the same problem.
In this blog, we are going to discuss what Wi-Fi auto disconnect is, the reason why this problem has become common in Redmi and Realme phones in 2025-26, step-by-step solutions, long-term solutions, and updates in the future. Let’s begin.
What is the Wi-Fi Auto Disconnect Issue?
Wi-Fi auto disconnect refers to the fact that your phone connects to the Wi-Fi network, and the internet connects as usual, at least in the short term. Then the Wi-Fi will just break down automatically without any prior notice.
This issue normally occurs due to software malfunctions or network settings malfunctions. Below are some common situations where users face this issue:
- Wi-Fi turns off as soon as the screen locks
- Wi-Fi drops during video calls or online gaming
- Wi-Fi disconnects at night or in an idle state
- The Wi-Fi icon is showing, but the internet is not working
Phone Having Wi-Fi Disconnection Problems
You should first understand that this is not a hardware issue. In most cases, the Wi-Fi chip is perfectly fine, only the software is not properly optimized. Some phones where this problem is seen more frequently:
Redmi Phones-
- Redmi Note Series
- Redmi Number Series (13 / 14 / 15)
- Redmi K Series
- Poco Phones (due to having the same MIUI)
Realme Phones-
- Realme Narzo Series
- Realme Number Series
- Realme GT Series
- Realme 5G Smartphones (after Android 15)
Main Reasons for Redmi & Realme Wi-Fi Auto Disconnect
Some of the main reasons for this disconnection are as follows:
- Android 15 / UI Update Bug
The Android and UI updates have bugs whenever there is a release. The Wi-Fi network management has been reported to have a glitch with Android 15 and Realme UI 6. Due to this fact, the phone will not understand the Wi-Fi signal, or it will break the connection, believing that it is a weak signal.
- Smart Wi-Fi / Auto Network Switching
Both the Realme and Redmi phones have a feature, namely Wi-Fi Assistant or Smart Network Switch. This option verifies whether Wi-Fi is not fast, then automatically causes a change of the phone to mobile data.
Due to a software defect, this feature occasionally continues to switch off Wi-Fi repeatedly even when the Wi-Fi network is functioning correctly and is stable.
- Battery Optimization & Power Saving Issues
New smartphones switch to Wi-Fi sleep mode when the screen is switched off in order to conserve battery, limiting background connectivity. Due to this fact, Wi-Fi will automatically go dead on the lock screen.
- Router Compatibility Problem
Following a software update, Wi-Fi connections may fail to establish, suffer from frequent disconnections, exhibit conflicting stored Wi-Fi passwords, or have altered DNS settings. Troubleshooting and repair steps for automatic Wi-Fi disconnection issues on Redmi and realme devices are provided sequentially.
Not every router works perfectly with every phone. A mismatch between the router and the phone can also be a reason for Wi-Fi auto-disconnection. Common issues include:
- Unstable 5GHz Wi-Fi
- Old router firmware
- Incorrect channel selection
- ISP-side issues
- Corrupted Network Settings
Fix 1: Check for Software Updates (Most Important)
Steps:
- Open Settings
- Go to About Phone
- Install Software Updates
- Ensure you check for and immediately install any available software updates.
- Restart your phone
Fix 2: Reset Network Settings (Highly Recommended)
This solution is widely regarded as the most effective. This will delete Wi-Fi passwords, but your personal data will remain safe.
Steps:
- Settings → Connection & Sharing
- Reset Wi-Fi, Mobile Network & Bluetooth
- Tap on Reset
Fix 3: Forget and Reconnect to Wi-Fi
Steps:
- Navigate to your Wi-Fi settings.
- Tap and hold the network you are currently connected to.
- Select “Forget Network”
- Restart your phone
- Connect to Wi-Fi again
Fix 4: Disable Smart Wi-Fi / Auto Switch
Try this step. This step often fixes the Wi-Fi disconnect issue.
Realme Users:
Settings → Wi-Fi → Wi-Fi Assistant → Turn OFF Auto Switch
Redmi Users:
Settings → Wi-Fi → Wi-Fi Assistant → Disable
Fix 5: Disable Battery Optimization
Following this step will prevent your phone from turning off Wi-Fi in the background.
Steps:
- Settings → Battery
- App Battery Management
- Select System Apps or Wi-Fi-related services
- Choose “No Restrictions”
Fix 6: Router-Side Solutions
After using your phone, have you used all the features on it? Then look at your router. Ensure that you are on 2.4GHz Wi-Fi, not 5GHz, restart the router, change Wi-Fi channel, and upgrade Wi-Fi router firmware. To most of the users, the solution to the problem of Wi-Fi disconnection was as simple as a switch of the router settings.
Fix 7: Developer Setting (Advanced Users)
Steps:
Tap on About Phone – Build Number 7 times and Open Developer Options.
Useful options:
- Wi-Fi scan throttling OFF
- Wi-Fi verbose logging ON
- Such environments can be used to enhance the stability of Wi-Fi.
Factory Reset – Last Option
In the event that the above steps are not effective, then proceed to take a complete data backup and reset the factory. This will put the phone software into a clean state and erase bugs that are not visible.
Should You Go to a Service Center?
Now, let’s talk about when you should go to a service center. Usually, 90% of cases are solved with software fixes. Go to a service center only if: Wi-Fi fails on every network. The issue persists even after a factory reset. The phone doesn’t detect any Wi-Fi signal.
Will a Permanent Fix Come in Future Updates?
Yes, absolutely. Both Redmi and Realme companies collect user feedback, analyze community reports, and push bug fixes in the next stability updates. Therefore, keeping your phone updated is very important.