How to Fix Microsoft 365 No Network Connection Error on Android

Microsoft 365 apps like Word, Excel, and Outlook on Android sometimes show a “No network connection” error—even when your internet is working fine. This issue can prevent you from syncing files, signing in, or accessing cloud-based features.

The problem is usually caused by app glitches, incorrect network settings, background restrictions, or account sync issues. In some cases, VPNs, battery optimization, or outdated app versions can also interfere with connectivity.

In this guide, we’ll walk you through detailed methods to fix the Microsoft 365 “No network connection” error on Android.

How to Fix Microsoft 365 No Network Connection Error on Android

Before applying the fixes below, make sure your internet connection is stable. Try opening a website or another app to confirm that your connection is working properly.

1. Check Internet Connection

Start with basic connectivity checks.

1. Turn Wi-Fi off and on again.
2. Switch between Wi-Fi and mobile data.
3. Restart your router if needed.

This ensures your network is stable.

2. Restart Your Android Device

Temporary glitches can cause connectivity issues.

1. Press and hold the power button.
2. Tap Restart.

Restarting refreshes system processes.

3. Disable VPN or Proxy

VPNs can block Microsoft services.

1. Open your VPN app.
2. Disconnect or disable it.
3. Try opening Microsoft 365 apps again.

This removes potential network conflicts.

4. Update Microsoft 365 Apps

Outdated apps may have bugs.

1. Open the Google Play Store.
2. Search for Microsoft 365 apps (Word, Excel, etc.).
3. Tap Update if available.

Updating ensures compatibility with servers.

5. Clear App Cache and Data

Corrupted cache can cause connection errors.

1. Go to Settings > Apps.
2. Select the Microsoft 365 app (e.g., Word).
3. Tap Storage & cache.
4. Tap Clear cache (and Clear data if needed).

This resets app data and fixes glitches.

6. Check App Permissions

Missing permissions can affect connectivity.

1. Go to Settings > Apps.
2. Select the app.
3. Tap Permissions.
4. Ensure network-related permissions are enabled.

Proper permissions allow the app to function correctly.

7. Disable Battery Optimization

Battery restrictions can block background activity.

1. Go to Settings > Battery > App battery usage.
2. Select the Microsoft 365 app.
3. Set it to Unrestricted or Allow background activity.

This ensures the app can connect to the internet.

8. Sign Out and Sign Back In

Account sync issues can cause errors.

1. Open the Microsoft 365 app.
2. Sign out of your account.
3. Restart the app.
4. Sign back in.

This refreshes your account connection.

9. Reset Network Settings

If the issue persists, reset your network configuration.

1. Go to Settings > System > Reset options.
2. Tap Reset Wi-Fi, mobile & Bluetooth.
3. Confirm the reset.

This removes faulty network configurations.

10. Reinstall the App

If nothing works, reinstall the app.

1. Uninstall the Microsoft 365 app.
2. Restart your device.
3. Reinstall it from the Play Store.

This provides a clean installation.

Conclusion

The “No network connection” error in Microsoft 365 apps on Android is usually caused by network conflicts, app glitches, or system restrictions. While it may seem like a serious issue, it can often be resolved with simple steps like clearing cache, updating apps, or adjusting settings.

By following the methods in this guide, you can restore connectivity and ensure your Microsoft 365 apps work smoothly on Android. Regular updates and proper app management will help prevent similar issues in the future.