How can I get docker-machine to start counting IPs from again?

Previously, when I first started a VM with docker-machine, the IP was assigned. Any machine I started after that gets,, etc.

At some point, the first machine started getting and no matter what I do (stopping all machines, re-creating machines, etc), the IP for the first machine I bring up always ends with 103. Is there anything that can be done to have the machine start over at

Source: StackOverflow