I have 3 instruments, 2 with NI GPIB-USB-HS adapters and 1 without. Both systems with adapters can see the 3rd instrument, but they can't see each other. I tried different boot orders, and several reboots and can't get them to see each other. The controller is 1 of the instruments with an adapter and is device #0. The other instrument using an adpater is not the controller and is device #28. Any ideas why the instruments connected using adpaters can't talk to each other?
