So I got the new raspberry pi 3 b+ and also bought the PoE switch to power it using Ethernet.
I don't know if I am doing something wrong, because it is not powering the pi. (you can ignore the white cable, it was there just because without it, the pi doesn't start) I hold the power button of the hat for a couple of seconds but nothing happens.
Do I need the PoE injector? https://uk.pi-supply.com/products/tp-link-poe-injector-tl-poe150s
Shouldn't the hat work directly just like it is using the normal Ethernet cable from my router?
I get Ethernet connection through the hat, but only if connected with power supply