"I bought the zone training collar to keep my Jack Russell Terrier from getting inside my cats' litter box. I placed the base next to the litter box and set the range to a couple of feet.
After following the instructions for setting up the collar, I put it on my dog.
The collar shocked her once but ever since then, it has not worked.
I tried moving the base, changing the batteries, switching the zone from A to B, etc, but my dog is able to basically walk right up to the base without any effect whatsoever."