Hi, All!I got second R710 on secondary market. I already have same model router – and it powers from Netgear POE+ switch without any issues during last 3 years….But when i try to power new one with same cable – it doesnt start at all.When i insert DC 12V power – it works perfect, but i need POE.How can i check – is it software issue or hardware and i need to return item back?