Xiaomi Wi-Fi Keeps Forgetting Saved Passwords in Wolverhampton

Xiaomi Wi-Fi Keeps Forgetting Saved Passwords? – UK Fix (2026)

UK Xiaomi provides practical, step-by-step solutions for Xiaomi device users across the UK. This guide helps you fix Wi-Fi passwords that won't save on your Xiaomi, Redmi, or POCO device. These fixes apply to UK retail and unlocked Xiaomi phones, regardless of your carrier—whether you're in Wolverhampton, Manchester, Leeds, or anywhere else in the UK.

Wi-Fi Keeps Forgetting Password? Quick Fix

  • ✔ Disable battery optimisation for system apps – Settings → Battery → App battery saver → Set System apps to No restrictions
  • ✔ Disable Wi-Fi Assistant – Settings → Wi-Fi → Wi-Fi assistant → Turn off network switching features
  • ✔ Enable Wi-Fi scanning – Settings → Location → Location services → Enable Wi-Fi scanning
  • ✔ Forget and reconnect – Settings → Wi-Fi → Forget network → Reconnect with password
  • ✔ Reset network settings – Settings → Additional settings → Backup & reset → Reset Wi-Fi, mobile & Bluetooth
  • ✔ Restart your phone – Ensures changes apply properly

Quick Diagnostic – What's Causing Your Password to Be Forgotten?

  • Does it forget the password after restarting? → Usually aggressive battery optimisation blocking system services, credential storage corruption, or HyperOS bugs
  • Does it forget the password when Wi-Fi turns off? → Wi-Fi Assistant or network switching features are likely interfering
  • Does it show "Saved" but won't connect? → Try forgetting the network and reconnecting
  • Is the password forgotten only on one Wi-Fi network? → Check router settings, especially WPA3 or Wi-Fi 6 compatibility
  • Is the password forgotten on every Wi-Fi network? → Likely a system settings issue—try resetting network settings

Quick Reference – Find Your Fix

SymptomMost Likely CauseFix
Password forgotten after restartBattery optimisation, credential storage issue, or HyperOS bugDisable battery optimisation for system apps; clear credential storage (if available)
Password forgotten when Wi-Fi turns offWi-Fi Assistant interferingDisable Wi-Fi Assistant features
Works on other networks, not this oneRouter compatibility issue (WPA3, Wi-Fi 6, PMF)Try WPA2 instead of WPA3; disable Wi-Fi 6
All networks forget passwordsSystem settings or corrupted network dataReset network settings
Password forgotten after backup restoreCorrupted backup restoredReset network settings and reconnect

Quick Answer

If your Xiaomi keeps forgetting saved Wi-Fi passwords, the most common cause is aggressive battery optimisation that blocks system services from saving network data. Other common causes include corrupted credential storage, Wi-Fi Assistant interference, or router compatibility issues like WPA3 or Wi-Fi 6. Start by disabling battery optimisation for system apps, turning off Wi-Fi Assistant, and enabling Wi-Fi scanning in Location settings. If the issue persists, reset network settings—this clears corrupted Wi-Fi configurations while keeping your personal data intact. Not every device running HyperOS is affected, but at the time of writing, several HyperOS builds have reported Wi-Fi-related bugs, including the Xiaomi 15 and POCO F7.

Before You Start

  • Does it forget the password after restarting? – This is usually a battery optimisation, credential storage, or HyperOS issue.
  • Does it happen on every Wi-Fi network or just one? – If just one, check your router's security settings.
  • Did the issue start after a HyperOS update? – Check if your device is on a known affected build.
  • Did you restore from a Google Backup or Mi Cloud? – A corrupted backup can restore broken network settings.
  • Try connecting to a different Wi-Fi network – If your phone saves passwords elsewhere, the issue is likely with your home router.

Why HyperOS Updates Sometimes Remove Saved Wi-Fi Passwords

If the problem started after a HyperOS update, here's why it can happen:

  • Migration bug – The update may not carry over saved Wi-Fi credentials correctly during the system migration process.
  • Cache corruption – The Wi-Fi configuration cache can become corrupted during the update, preventing saved passwords from being retained.
  • Credential database rebuild – HyperOS may rebuild the credential storage database, which can reset saved Wi-Fi profiles.
  • Network profile incompatibility – Some older saved profiles may not be compatible with the new HyperOS build and are automatically removed.

Why Xiaomi Keeps Forgetting Wi-Fi Passwords – A Deeper Look

Understanding why this happens helps you fix it correctly. The causes typically fall into two categories:

Phone-Related Causes

  • Battery optimisation restricting system services – Xiaomi's battery management is very aggressive, and it can stop system services from saving data in the background.
  • Corrupted credential storage – In HyperOS, the credential storage that handles Wi-Fi passwords can become corrupted, especially after system updates.
  • Wi-Fi Assistant interfering – Wi-Fi Assistant tools automatically switch networks to improve speed, but they can override saved credentials.
  • Location services for Wi-Fi disabled – Xiaomi ties Wi-Fi stability to location accuracy for scanning and validation. If location services are off, Wi-Fi credentials may not save reliably.
  • Corrupted saved network configuration – If a saved network becomes corrupted, your phone may fail to store its password correctly.
  • System permissions blocked – Core connectivity services may have blocked permissions.
  • Backup restore issues – If you restored from a Google Backup or Mi Cloud with a corrupted network profile, the problem can reappear after restore.
  • Known HyperOS Wi-Fi bugs – Several HyperOS builds have reported Wi-Fi password saving issues.

Router-Related Causes

  • WPA3 incompatibility – Some Xiaomi devices don't support WPA3 encryption. Try switching to WPA2-PSK (AES).
  • Wi-Fi 6 compatibility issues – Some users have reported that disabling Wi-Fi 6 on the router (or creating a separate Wi-Fi 5 network) resolves the issue.
  • Protected Management Frames (PMF) – If your router lets you configure PMF, try setting it to Optional instead of Required.
  • MAC address filtering – If your router has MAC filtering enabled, your phone may be blocked.
  • Router firmware – Outdated router firmware can cause compatibility issues.

Basic Fixes (Start Here)

Step 1: Turn Off Battery Optimisation for System Apps

Xiaomi's battery management is very aggressive, and it can stop system services from saving data in the background. Disabling optimisation for connectivity services allows your phone to remember Wi-Fi passwords properly.

  • Settings → Battery
  • Tap App battery saver
  • Set System apps to No restrictions
  • Restart your phone and test

Visual Path: Settings → Battery → App battery saver → System apps → No restrictions

Step 2: Disable Wi-Fi Assistant

Wi-Fi Assistant tools automatically switch networks to improve speed, but they can override saved credentials. Turning these off prevents the phone from dropping and forgetting known networks.

  • Settings → Wi-Fi
  • Tap Wi-Fi assistant
  • Turn off network switching features
  • Restart your phone and test

Visual Path: Settings → Wi-Fi → Wi-Fi assistant → Turn off network switching

Step 3: Enable Wi-Fi Scanning

Xiaomi ties Wi-Fi stability to location accuracy for scanning and validation. If location services are off, Wi-Fi credentials may not save reliably.

  • Settings → Location
  • Tap Location services
  • Enable Wi-Fi scanning
  • Restart your phone and test

Visual Path: Settings → Location → Location services → Wi-Fi scanning → ON

Step 4: Check Auto-Connect Setting

Sometimes the Auto-Connect option is disabled for a specific network, which can make it seem like the password was forgotten.

  • Settings → Wi-Fi
  • Tap the gear icon next to your connected network
  • Check Auto-connect is enabled
  • If disabled, toggle it ON

Step 5: Forget and Reconnect to the Wi-Fi Network

This removes any corrupted or outdated profile data that may be causing the phone to forget the password. Removing the saved Wi-Fi profile and reconnecting from scratch forces the system to save fresh credentials.

  1. Settings → Wi-Fi
  2. Tap the gear icon or > next to your connected network
  3. Select Forget or Forget network
  4. Restart your phone
  5. Reconnect to the Wi-Fi network by selecting it and entering the password
  6. Lock the phone briefly to confirm the password stays saved

Step 6: Clear Credential Storage (If Available)

If credential storage is corrupted, clearing it can resolve password saving issues. If your device includes a "Clear credentials" option, you can try clearing stored certificates and credentials. Not all HyperOS versions include this setting.

  • Settings → Security → More security settings
  • Look for Clear credentials or Clear storage
  • If available, tap it and confirm
  • Restart your phone
  • Reconnect to your Wi-Fi networks

Step 7: Restart Your Router and Phone

This simple step can resolve many connection issues. Some system changes do not fully apply until the phone reboots. Restarting ensures all connectivity services reload correctly.

  • Unplug your router from the power socket
  • Wait 30 seconds
  • Plug the router back in and wait for it to fully restart (2-3 minutes)
  • Restart your Xiaomi phone
  • Try connecting again

Advanced Fixes (If Basic Steps Don't Help)

Step 8: Check Router Security Settings – WPA2 vs WPA3

If your router uses WPA3, some Xiaomi devices may have trouble saving passwords. Try switching to WPA2-PSK (AES) in your router's settings.

  • Log into your router's admin panel
  • Check the Security Mode or Encryption setting
  • If it's set to WPA3, try changing it to WPA2-PSK (AES)
  • If your router lets you configure Protected Management Frames (PMF), try setting it to Optional instead of Required.
  • Save the changes and restart your router
  • Try connecting again

Step 9: Disable Wi-Fi 6 or Enable Wi-Fi 5 Compatibility Mode

Some Xiaomi devices have compatibility issues with Wi-Fi 6 routers. Some users have reported that disabling Wi-Fi 6 on the router—or creating a separate Wi-Fi 5 (802.11ac) network—resolves the issue.

  • Log into your router's admin panel
  • Look for Wi-Fi 6 or 802.11ax settings
  • Try disabling Wi-Fi 6 temporarily, or create a separate Wi-Fi 5 network
  • Some routers also have OFDMA settings that can cause compatibility issues
  • Save and restart your router
  • Try connecting to the Wi-Fi 5 network

Step 10: Check if MAC Filtering is Enabled

Some routers have MAC address filtering enabled, which blocks devices not on the allowed list.

  • Log into your router's admin panel
  • Look for MAC Filtering, Access Control, or Device Allowlist
  • If enabled, add your Xiaomi's MAC address (find it in Settings → About phone → Status)
  • Save and test

Step 11: Why Does Xiaomi Forget Wi-Fi Passwords After a Reboot?

If your phone forgets Wi-Fi passwords specifically after restarting, the cause is often one of these:

  • Battery optimisation – System services are restricted from saving data in the background
  • Credential storage corruption – The saved Wi-Fi credentials become corrupted and are lost on reboot
  • HyperOS bug – Several HyperOS builds have reported Wi-Fi password saving issues
  • Corrupted backup restore – If you restored from a Google Backup or Mi Cloud, a corrupted network profile may have been restored
  • Corrupted network profile – The saved Wi-Fi profile is damaged and doesn't survive a reboot

Step 12: Reset Network Settings

If other steps fail, resetting network settings can clear any corrupted system data. This removes all saved Wi-Fi, Bluetooth, and mobile data configurations but keeps personal data intact.

  1. Settings → Additional settings → Backup & reset
  2. Select Reset network settings or Reset Wi-Fi, mobile & Bluetooth
  3. Confirm the reset
  4. Restart your phone
  5. Reconnect to your Wi-Fi network

Does This Happen On Every Wi-Fi Network?

  • If the issue happens on only one Wi-Fi network – the problem is likely with that specific network (router security settings, Wi-Fi 6 compatibility, PMF, or MAC filtering). Focus on the router-related fixes above.
  • If the issue happens on all Wi-Fi networks – the problem is likely your Xiaomi device (battery optimisation, Wi-Fi Assistant, credential storage, or corrupted system data). Focus on the phone-side fixes.

Router-Specific Settings for Common UK ISPs

If you're using one of these common UK routers, here's where to find the security settings:

Router BrandDefault IPWhere to change WPA2/WPA3
BT Hub192.168.1.254Wireless Settings → Security
Virgin Hub192.168.0.1Wi-Fi Security → Encryption
Sky Hub192.168.0.1Wireless → Security Settings
EE Smart Hub192.168.1.1Wi-Fi Advanced → Security
Vodafone Broadband Hub192.168.1.1Wi-Fi Settings → Security Mode

What to Do If the Issue Persists

If Wi-Fi still forgets saved passwords after completing all steps:

  • Check router settings – Ensure MAC address filtering isn't blocking your phone
  • Update router firmware – Outdated firmware can cause compatibility issues
  • Factory reset – only as a last resort; back up your data first
  • Contact Xiaomi UK Support – for professional inspection and advice

Contact Xiaomi UK Support

If the issue persists after completing all steps, contact Xiaomi UK Support through the official channels:

  • Xiaomi UK Support website – Official support portal for UK customers
  • Feedback app – Use the built-in Feedback app on your Xiaomi device to report the issue
  • Xiaomi Community – Post in official Xiaomi community forums, including UK-specific threads

Final Verdict

If your Xiaomi Wi-Fi keeps forgetting saved passwords, the most common cause is aggressive battery optimisation that blocks system services from saving network data. Other common causes include corrupted credential storage, Wi-Fi Assistant interference, or router compatibility issues like WPA3 or Wi-Fi 6. Start by disabling battery optimisation for system apps, turning off Wi-Fi Assistant, and enabling Wi-Fi scanning in Location settings. If that doesn't work, reset network settings—this clears corrupted Wi-Fi configurations while keeping your personal data intact.

In most cases this is a software issue rather than a hardware fault. Start with battery optimisation and Wi-Fi Assistant, then check router compatibility. If the issue began after a HyperOS update, monitor future updates because Xiaomi has acknowledged Wi-Fi-related bugs on several builds.

Quick summary:

  • Only this network fails? → Check router security (WPA2 vs WPA3), Wi-Fi 6 compatibility, and PMF settings.
  • Every network fails? → Focus on phone-side fixes—battery optimisation, Wi-Fi Assistant, credential storage, reset network settings.
  • Started after a HyperOS update? → Check if your device is on a known affected build and monitor for updates.
  • Password disappears after reboot? → Check battery optimisation, credential storage, and HyperOS bugs.

Frequently Asked Questions

Why does my Xiaomi keep forgetting Wi-Fi passwords?

Common causes include: aggressive battery optimisation blocking system services, Wi-Fi Assistant interfering with saved networks, location services disabled for Wi-Fi scanning, corrupted saved network profiles, credential storage corruption, or router compatibility issues (WPA3, Wi-Fi 6, PMF).

How do I stop Xiaomi from forgetting Wi-Fi passwords?

Disable battery optimisation for system apps, turn off Wi-Fi Assistant, and enable Wi-Fi scanning in Location settings. If the issue persists, reset network settings or clear credential storage (if available).

Why does Xiaomi keep forgetting Wi-Fi after every reboot?

This usually happens when battery optimisation or system restrictions prevent network services from saving data. Other causes include credential storage corruption, HyperOS bugs, or a corrupted backup restore.

Does HyperOS have Wi-Fi password saving bugs?

At the time of writing, several HyperOS builds have reported Wi-Fi-related bugs, including the Xiaomi 15 and POCO F7. Not every device running HyperOS is affected. Check for HyperOS updates regularly.

Will resetting network settings delete my files?

No. Resetting network settings only removes saved Wi-Fi networks, Bluetooth devices, and mobile data settings, not photos or apps.

Is this a software bug or a hardware problem?

Almost always software. Hardware Wi-Fi issues typically cause connection drops, not forgotten passwords.

Do these fixes work on UK Xiaomi devices?

Yes. This guide applies to Xiaomi, Redmi, and POCO devices sold in the UK. The steps are identical across UK models.

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