Hik Ds-Kd-8103e6

im having some issues with an Hik outdoor station i put one in other day and with in 2-3 hours it just shuts down restarts constantly, if i unplug the Lan it perfectly fine so spoke to hik said sounds like out of box failure so ordered another one as needed it asap and put it on bench test at home and does exactly the same so i aint got a clue any help advise would be greatly appreciated model is a Hik Ds-Kd-8103e6