You don't need to do the autoconfiguration step. Not sure what that does, but not needed.
You must use Group 1, "Group" actually means "Capability" in terms of association, so the number you use is important. the cooper Switch only supports Group 1.
You should probably unpair the cooper switch and start over (associations can stay on the device even if Vera doesn't think they are there, unpairing clears all pervious incorrect associations).
If you use Group 1 and it is still not working, than post the device you are trying to control here. Some Z-wave+ devices don't like the older non-secure protocol so won't listen to the commands of the association unless you do some additional settings. (but that is very unusual, it is usually a problem the other way around... trying to get a z-wave+ device to associate and control a non-z-wave+ device)