A clinic AP worked on an injector-fed drop. After a tech moves the same patch to a different non-PoE switch port with no injector, the AP has link LEDs dark and stays off. What does this illustrate?
Select an answer to reveal the explanation.
Short Explanation
Data jack ≠ free lunch. That AP was alive because an injector (or PoE switch) was feeding it. Park it on a plain port with no PSE and it goes dark—even if the cable still “looks” like Ethernet.
Full Explanation
PoE APs require a PSE on the Ethernet path. Relocating a cable to a non-PoE port without an injector removes the power source even though twisted-pair data wiring remains. Technicians isolate PoE path failures separately from SSID or security configuration when an AP that previously worked no longer powers on.