Hi. I have a PAC that I am trying to use as a PCI on a couple of different computers. I have tried a Win7 64 bit system, Win8 64 bit laptop and a windows XP system that is running on a virtual system on the win8 laptop. I keep getting the error stating: Error 23108 "Failed to open the network. The network port could not be opened." I have run the diagnostics utility and attempted to repair PCI with bad baud rate and this hasn't changed anything, but with the utility and this PAC I can actually connect to cbus and send commands on the cbus network to turn channels on and off. Does anyone have any ideas on what I may be able to try to get this PAC working as a PCI again? I have seen other threads of people replacing the PACs to get this functionality back, but hopefully there is something else that can be done first! I just find it strange that you can connect to the cbus network with the diagnostics utility but not via toolkit with this unit... Thanks!