Router – MikroTik Router: PoE-In doesn’t work

I'm trying to install a MikroTik Cloud Core Router CCR1009-7G-1C-1S+PC. Our internet comes from an antenna and the main cable (from the antenna) first connects to a PoE injector (Phihong POE61U-560DG). The cable which comes out of the PoE injector is our internet connection and works fine, if I connect it to a basic Wifi router it works like a charm. However, I want the Cloud Core Router to handle this part, but when I connect the PoE cable to the router there is no link. No LED is blinking.

So, right now, I have to connect the powered ethernet cable to the Wifi router and from the Wifi router to the Cloud Core Router, this works. But why does it work on the Wifi router and not on the CCR? Is there a setting that I need to change in RouterOS? I have absolutely no idea what this is causing. The cable is the same, standard Cat. 6 ethernet cable. And the Wifi router is nothing special at all.

The port doesn't matter either, none of the 7 ports are working with said cable.

Thanks for any suggestions