Hi there! I understand your WiFi connection looks good, but when you try to use the online global mode in Perfect Piano, it doesn’t work. Let’s work through this together.

To start, could you clarify a couple of things for me?
1. Are you able to use other apps or websites without problems on the same WiFi network?
2. When you say “online global mode,” are you referring to the multiplayer or online play feature in Perfect Piano?
3. Have you tried restarting the app or your device since this issue started?

Meanwhile, here’s a step-by-step guide you can try that often fixes similar network issues with Perfect Piano on Android 10 devices:

1. Check App Permissions: Go to your device Settings > Apps > Perfect Piano > Permissions. Make sure the app has permission to access the network.

2. Clear Cache and Data: In Settings > Apps > Perfect Piano, clear the cache first. If the problem persists, clear data (this may reset some app settings, but won’t delete your account).

3. Check Network Settings: Even if WiFi looks connected, sometimes restrictions or VPNs interfere. Try toggling Airplane mode on and off to reset connections. Also, verify there is no VPN or data saver enabled that might block the app network.

4. Update the App: Go to Google Play Store and ensure Perfect Piano is updated to the latest version. Sometimes bugs affecting online features are fixed in updates.

5. Reinstall the App: If nothing changes, uninstall and reinstall Perfect Piano to get a fresh installation.

6. Test Other Online Features: Try logging into your account or accessing any other online parts of the app to confirm if the issue is isolated to global mode.

If you’ve tried these or need help with any step, just let me know! If this still doesn’t work, we can look into more advanced troubleshooting or verify if there is an ongoing server issue on Perfect Piano’s side.

Are you ready to try these steps?