stations not showing up as online?

Hi all, 

is this something anybody else has a sollution to, the DIV (servers) under computer  are servers and i cant figure out why they dont show up under the servers tab same goes for the balie pc and desktop that wont show up under workstations. why? what am i doing wrong? 

just in case anyone wonders the drc agent is installed on all the machines

help plz ..