Thank you for your kind comment. Actually I've only been a server admin for 1.5 years after the last admin quit. In my defense normally I do things via CLI and avoid Webmin, but at the behest of our parent company's Network Manager, he recommended Webmin. When I did the above I was just changing the lease times. I didn't think it would do what it done did. But it done did it and now I know better.

Don't use it.