Hello,
i got my home assistant yellow POE today, i assembled it as per instructions on the homeassistant.io page. After plugging the yellow into to my Aruba 2930F POE+ switch, nothing happens. I switched cables and ports to be sure, but nothing happens. I found a post about the CM4 maybe not correctly plugged in, so i removed the CM4 and plug it in again, i hear a light click on both connector sides, from visuals the connection looks good.
I did a visual inspection of the connector on the yellow and CM4 with a camera zoom, both look fine. The CM4 is a new device.
On my switch i notice a power draw around 0.7 watts on the port where the yellow is connected. No reaction on the yellow, not blinking or anything.
Is there a known issue with yellow and POE?