Clearing PfSense expired DHCP leases manually

How to
Go to Diagnostics then Edit File
Copy the following file path: /var/dhcpd/var/db/dhcpd.leases
Click Load
Now highlight and delete the blocks of leases you want to delete
Click Save when finished

Source(s)
forum.pfsense.org/index.php?topic=33577.0

YouTube