I had the same problem with the G2 Keypad. Hub did not get any key presses. Tried many times the steps outlined in this thread. I was able to GET IT TO WORK finally! Only thing I had to do was to keep the KEYPAD RIGHT NEXT TO THE HUB. Used Smart start to add (I don't know if that it is even necessary, classic inclusion might work as well). Did not even disable the proximity sensor. After that it worked flawlessly. However when I move the keypad away from the hub where it failed to work (hub is downstairs, keypad upstairs, 30ft apart may be) it failed again. Never got to work as before even if I bring it closer to the hub. i.e no key presses goes to the hub. I had to reset it and add again. I even added a second keypad. Both works perfectly. But the two keypads does not sync with each other. i.e If I arm from one the other does not change states. I can live with one for now!
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