I have a customer that lost the POE port on a rb532, so I replaced the board and things seemed to work fine when the POE data port is plugged into my laptop, customers desktop or the ata sip device. BUT! if I plug the data port into a switch the POE starts blinking.
I tried other cables, POEs and switches but I still get the blinking.
I am going to plug in another board inside to see if it's the Cat5e cable that runs to the top of the building.
anyway, I just wanted to see what you guys think it could be.