Hi there! It sounds like your POWER TUNER app is connecting to WiFi but shows "no internet" and "0 data", is that right? Just to get a clearer picture, is this issue happening on a specific WiFi network, or does it occur on multiple networks? Also, have you noticed if the app itself is not receiving any data, or is your entire Android device unable to access the internet despite the WiFi connection? This info will help me guide you better.

Meanwhile, here are some initial steps we can take together:

1. Check WiFi Network Status: Sometimes, the WiFi network itself might have connectivity issues. Try connecting another device to the same WiFi network and see if it can access the internet. If not, the issue may be with the router or ISP.

2. Forget and Reconnect to WiFi: On your Android 10 device, go to WiFi settings, long-press the network you're connected to, and choose "Forget network". Then reconnect by entering the password again. This can help reset the connection.

3. Restart Device and Router: Power off your Android device and your WiFi router for about 30 seconds, then power them back on. This often resolves temporary glitches.

4. Check App Permissions: Go to Settings > Apps > POWER TUNER > Permissions, and confirm that it has permission to use network/data.

5. Clear App Cache and Data: In the same app settings, try clearing the cache first. If that doesn’t work, clear the app data, but note that this may reset any app settings or stored profiles.

6. Check for App Updates: Visit the Play Store to see if an update to POWER TUNER is available. Sometimes bugs are fixed in newer versions.

If these steps don’t fix the problem, there might be an issue with the app’s internal connection to its servers or a compatibility glitch with your device’s Android 10 WiFi handling. If you tried any of these already, let me know which ones so we can try some advanced troubleshooting like checking for network proxy settings on your device, or inspecting if the app requires a VPN or specific network ports.

Could you please confirm what you’ve attempted so far? And if you can describe what exactly happens when you try to use the app—like any error messages or specific behaviors—it will help me assist you better.