@James Awesome - thanks for the quick reply, in fact a member of a group suggested that i change it to cuda in preferences and i realized that this is exactly the issue!!! It is now working great! I can back to let you (and others) know that it was a noob error on my part!!! thanks also for the heads up on the synching requirements!!! :)

Hi All, thanks for the great add-on - it seems that this issue is happening with me too, i have two identical workstations running on 2.8 and on the local (client) machine i have set each node to utilize cuda, which happens on the local machine, but the other it just utilzes and maxes out the cpu - it seemed to create the correct balancing between machines at 0.5 each (as expected), but the other machine is lagging far behind as it's only maxing out the cpu and not touching the gpu at all. The cards are Nvidia Quadro p4000's in case you needed to know that :) Furthermore i seemed to have an issue syncing them and can only manage to do so if the blender application is open on the external pc. I've also ensured that after each time i make a change to the settings that i resave and resync the connection so that it uploads again. Great add-on and it's so close to what i need for these great gpu's! i might try it out on 2.79 when i get a chance!