backing up macbook verbatim mediashare

Hi i've got a 2TB Verbatim mediaShare connected to my router and I would like to use it as a Time Machine back up, but when I try to set it up with

the software it come with the devise, it all way tells me its a THE NETWORK BACK UP DISK NOT SUPPORT THE REQUIRED AFP FEATURES and

other times is saying THE OPERATION COULN'T BE COMPLETED. (OSSTATUS ERROR 2.)

is anyone got any solutions?

still learning Mac OS