Hi, I think i've a very unusual issue.
Specifically i've a PoE issue with the SG200-50P switch and it afflicts the following ports: 5, 6, 29, 30.
If I plug a poe device (yealink t20p) on the port 5, the green led (link led) of the port 5 turns on.
The yellow led (poe led) of the port 5 is off but the yellow led of the port 29 turns on (notice that the port 29 is disconnected).
If I plug a second phone on one of these ports the phones I've connected are in bootloop (as if the switch didn't supply enough power).
I've tried with different phones, of course.
Another strange situation happens when I set up the administrative poe status to "down" (power inline never), but the port goes on supplyingpower .
I've also tried to upgrade the firmware and to shut down the switch by disconnecting the wall socket. I've also disabled the green ethernet feature with no results.
