DS-K1T804MF Fingerprint Access Control Terminal Can Not Activate

I bought the DS-K1T804MF Fingerprint Access Control Terminal and did all the setup steps. SADP Picks up the unit. But in iVMS-4200 the unit does not allow the option of being activated. I assume it is something to do wth the IP/ Subnet Mask/ Gateway, but i have no knowledge on how this works and which IP I have to change. Hik-Connect also does not pick up the unit.
Any advice would be much appreciated.