Hi there! I'm Daniel Otega, and I'm here to help you with your KOHLER generator issue. It sounds like you've done some solid initial troubleshooting by rebooting the controller and confirming that you can ping it. That’s a great start!

To better assist you, could you let me know if there are any specific error messages displayed in the app? Additionally, have you recently changed any network settings or updates that might have coincided with the generator going offline?

In the meantime, let's go through a few more steps to troubleshoot this further:

1. Check Network Connection:
- Ensure your smartphone or computer, which is running the KOHLER app, is connected to the same network as the generator.
- If your internet connection is stable on other devices, that's a good sign, but sometimes the generator may need a refresh on its network settings.

2. Firmware Update:
- It's possible that the firmware of the generator might need to be updated. You can frequently find these updates through the KOHLER app or on the KOHLER Energy Management website.

3. Factory Reset:
- If the above steps don't work and you’re comfortable proceeding with a factory reset, please be aware that this will return all settings to default. This can often resolve connectivity issues, but you'll need to set up the connection again afterward.

4. Try Reflashing Firmware via USB (if necessary):
- Although it’s somewhat more advanced, some users have found success by connecting a laptop to the generator and reflashing the firmware through a USB connection. This method has been effective for specific connection issues. You can refer to guides available online for more details on how to do this.1

Let me know if you've encountered any specific issues with these steps or if there's anything particular you want to address! Are you satisfied with the solution I provided, or would you like to explore more options?