I am getting a lot of note hangs too. And some notes simply don't play. If I moved them around a bit, they may play. The GUI doesn't hang though. And it's only with Kontakt (I only have version 3.5), Vienna Instruments are fine. No effects are inserted in VE Pro. Wireless is disabled on all computers. When I ran VE Pro standalone I didn't have this problem. It doesn't matter how busy the arrangement is. CPU is rarely above 10%.
DAW: Logic 9.1.1, OS 10.5.8, VE Pro 5436
Server: Kontakt 3.5, Windows 7 64bit (also tried XP64), VE Pro 5436
Has anybody with this problem tried Kontakt 4?