I'm using a Turnkey Core box as a basis for an install of apt-cacher-ng ... updated the DHCP server on my router to give it a static lease (give it a predetermined IP), but instead something is telling udhcpc to send a 'select' for its prior address.

I  have searched high and low online and on the system itself to find where udhcpc and/or ifupdown and/or whatever handles network configuration on TKL Core is storing the data about the prior lease (including the old IP which it subsequently requests) and I can't find it.

A little help??