Your diagram doesn’t match your verbal description, and I’m not sure you understand how the traveler system works. Did you take pictures of everything before you disconnected the original switch? Also, was your original non networked set up the kind where sometimes you flipped switch B up to turn on the light and sometimes you flipped it down? There are about 8 different ways to wire a nonnetworked 3 way and not all work for networked switches. So the first thing an electrician would figure out is exactly how the old switches were wired.
The fact that you can’t turn off the lights from what you’re calling the Master when the Aeon switch is on indicates either you have the aux and the master confused or it’s not wired correctly.
- makes sense from your diagram except I doubt if your diagram actually represents what’s happening inside your walls. Remember that a networked switch must always have some current or it won’t be able to hear the next “on” command. This might help:
Wire colors can be completely arbitrary, you never know what the previous person actually used. The connector colors are more consistent in their significance, but you haven’t mentioned those.
All of that said, don’t connect the green wire to the neutral unless an electrician tells you to. (And that electrician is not a beneficiary in your will. Or having an affair with your wife. 
) Ground and neutral are not the same thing.
If you live near a Home Depot, many have one day classes in how to install a light switch. That would be a good place to start. Otherwise bring in an electrician.