Newbie here. I am trying to set up my POE video doorbell (just bench testing it). When I plug it into my router, there is no status light on the doorbell. I also tried plugging it into an Eero. Same - no light. I am using a TP-Link Model: TL-SG105
Gigabit Desktop Switch. Will this power it?

I have also tried using different Ethernet cables. I also tried resetting the doorbell. Still no status light comes on.

What am I doing wrong?

Did I receive a dead doorbell?