Okay, Klipsch support is not responding to my queries (started that before Christmas) so I have taken things into my own hands. Since turning the subwoofer off and on is the only sure way to reset the subwoofer, I have decided to use a power switch or something like the item listed below and turn the subwoofer on and off manually to reset it - it is s pain but I think it is the only way - the remote is not working consistently:
Cordinate Designer on/off switch plug
I wish it had a light on the switch so I could visually tell if it was on or not. Does anyone know a better solution?