I am experiencing the same thing.  My main box and five boxes with me are all crashing to login screen when I try to enter LDoN 2.  My main box is also having some sort of issues drawing the zone, but the other boxes are fine.  It has crashed three times, but the other, low setting ones, have had no issues other than not getting into LDoN 2.

I think the buffs you get from the Buffbot are the best combination.  Just get buffed and look at them.