I do have 2 extenders defined, I usually define them from the network tab so sorry for the confusion. I already have Kaleidescape and Escient fireball running and working well in 17 rooms on the yacht, the problem is that the Escient takes too long to load the track list. So we thought we would give the iPort a try as we have them working well in AMX and Crestron installations using the supplied modules. However the Pronto module does not seem to be as good. I do believe the problem lies within the firmware but no one seems to know for sure.