Punters hoping for a big Lotto win have had trouble getting tickets.
A lotto ticket seller in Auckland's Te Atatu Peninsula said the system failed at his shop this afternoon.
"It's working now. It wasn't working before. I think they were down everywhere," said the proprietor of Peninsula Foodmarket.
The system was out for about half an hour and other retailers had told him they had experienced the same trouble.
It is not clear how widespread the problems have been.