nearly the same here. my old default session connects with all the instances. but when I try to connect a new instance it does not show up. manually connecting by typing in the IP does not work ether.
when I close the logic session and start a blank one (and add an VEpro plug in) all the instances show up.
Seems to have something to do with that my old default session was build with an older version of VEpro. looks like everything could work out when I start a new default session from scratch...
Mac Pro 8 core 2010, OSX 10.6.5, 24gb RAM, Logic 9