4.1? like it was just mentioned, the last firmware is 3.07 for the zen22. if this driver has the same issue as the driver for zen27 and zen26 then it seems to be related to s2 authentication in the C7, at least that is what is being mentioned
There have already been a couple of reports of people trying to use these drivers but while trying the switch doesn't respond to on/off directly on the device page. Maybe @bcopeland could check if this is a real issue or not, sure as soon as he has time.