Chris,
That was the issue. When I move the USB stick close to the switch in question it shows up and works - But then some of the other lights went to a red question mark. I am still learning about zwave and I suspect I need to add a couple of devices to make the mesh a little stronger. (I have a couple of long distances)
I could not find an "optimize and repair network" operation at first glance. Since ThinkEssentials is not the master controller (the HA07 is) I suspect I need to do this on the HA07. I will spend some time playing with it again today. Thanks for your support.
Can you explain the difference between the red question mark and the red circle with the line through it? I seem to get both at different times but I am not sure why each appears. Is the question mark missing a response during a poll and the circle with the line missing a response to a click? Does the software continue to poll devices with the red circle?
pat