Hi there! I see that your Toshiba AC NA app is stopping during provisioning, which means it gets stuck while trying to set up or connect your air conditioner. To better assist, could you share if you’ve successfully connected your AC unit's Wi-Fi network to your phone yet? Also, what version of the Toshiba AC NA app are you using, and have you checked if your phone is connected to a Wi-Fi network with WPA2 security?

Meanwhile, here’s a straightforward step-by-step approach we can try:

1. Connect to AC’s Wi-Fi Network First: Make sure your phone is connected to the Toshiba AC Wi-Fi network broadcast from your unit before continuing in the app. Sometimes the provisioning process pauses if this connection isn’t established correctly.

2. Check Wi-Fi Security: The app requires at least WPA2 encryption on your Wi-Fi router. If your network uses older security like WEP or no password, it can cause provisioning to stop.

3. Force Close and Restart the App: Completely close the Toshiba AC NA app and any related apps (like MRCOOL Remote if present), then reopen Toshiba AC NA. This can refresh the connection and resume provisioning.

4. Reboot Your AC Unit: Turn off the AC unit and unplug it for a minute to restart it. Then retry the provisioning process.

5. Ensure App Latest Version: Confirm that you have the most recent app update installed from the Ubuntu-compatible source or any supported method on your system.

If you’ve already tried any of these, please let me know, and we can dive into some more advanced troubleshooting like checking specific network settings or reviewing logs to see where it’s getting stuck.

Are you connected to the AC’s Wi-Fi network now, and what step did you get stuck on exactly? That info will help me pinpoint the cause better.