Same problem !!

I also checked the output voltage, and it’s a stable 24V.

The Wi-Fi network is now dedicated and 2.4GHz only. The configuration process completes successfully without any errors, and everything looks fine in the app.

To rule out any issues with the external irrigation valves, I’d like to try connecting the wires manually from the controller.

Can you tell me which wires I should connect?

If, after connecting the wires, the valves work, then the Nitro controller is the only possible issue left.