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This article helps you resolve an issue where the “Wi‑Fi Not Secured” alert continues to appear in Trend Micro Mobile Security, even after marking the network as Trusted.

The steps below will help you update your device, refresh the app’s settings, and secure your Wi‑Fi network so the alert disappears.

Why Did This Happen

This issue may occur when:

  • Your router is using outdated or weak security settings.
  • The Trend Micro Mobile Security app cannot correctly recognize your trusted network.

How Do I Fix This

Follow these steps in order. After each step, check if the alert disappears.

  1. Update the Trend Micro Mobile Security app
    • Make sure you are using the latest version of the app.
    • Open the App Store (iOS) or Google Play Store (Android) and install any available updates.
  2. Restart your device
    A simple restart can fix temporary app or network detection issues.
  3. Re‑add your Wi‑Fi network as Trusted
    • Open Trend Micro Mobile Security.
    • Remove your current Trusted Network entry.
    • Add your home Wi‑Fi network again.
  4. Disable battery optimization for the Trend Micro app
    • Battery optimization may prevent the app from running in the background, causing it to lose track of trusted networks.
    • Turn off battery optimization for the Trend Micro app in your device’s Battery or Power Management settings.
      • If the alert still appears, the issue may be with your router’s security settings. Follow the steps below.
  5. Access your router’s admin panel
    • Connect to your Wi‑Fi network.
    • Enter your router’s IP address (commonly 192.168.1.1) in a web browser.
    • Log in using the admin username and password on the router label.
  6. Enable WPA3 or WPA2 encryption
    • Go to your router’s Wireless Security settings and make sure the security mode is set to:
      • WPA3, or
      • WPA2‑PSK (AES)
  7. Update your Wi‑Fi password
    Use a strong, unique password for your wireless network. Avoid personal information such as birthdays or names.
  8. Update your router firmware
    Look for a Firmware Update or Software Update section in your router settings and install any available updates.
  9. Change default router admin credentials
    Update your router’s default admin username and password to prevent unauthorized access.
  10. Reinstall Trend Micro Mobile Security
    If the alert still persists after completing the steps above:
    • Uninstall the Trend Micro Mobile Security app
    • Reinstall it from the App Store or Google Play Store
    • This resolves issues caused by incomplete configurations or corrupted app data.

Still Need Help?

If you continue seeing the “Wi‑Fi Not Secured” alert, contact Trend Micro Support for further assistance.

Keywords: wi-fi not secured, wi-fi checker, wi-fi, mobile security, trend micro mobile security,
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