at Leo’s request I have spent some time testing the QHY9s and can confirm an issue with the latest drivers:
tested latest QHY9 Drivers (ASCOM and SYSTEM) downloaded from QHY today.
There is definitely some problem with the driver - not sure which, ASCOM or System, the behavior is identical for me on all 3 programs:
Connection to the camera occurs, but as soon as cooling is activated, the programs all become unresponsive and the only way to shut them down is to kill them with Task Manager.
I have no issues with my ASI071 MC Pro with any of he programs. I have not used my QHY 9 for over a year until now so was not aware of these issues before.
The Laptop I tested with is a 5 months old Lenovo Thinkpad running Windows 10 Pro. It only has USB 3 ports - I wonder if this could be the problem? I have another laptop that has Voyager on it but which has USB 2 ports. I will test this tomorrow and report back. I also have a set of old drivers I can compare with.