I have Pi-hole running on a Raspberry Pi 3 Model B+ with the latest Raspbian Stretch. This Pi-hole is connected to a Netgear BR500 router and is set to be both the DHCP and DNS server for the network. The router can assume or assign both DHCP and DNS server roles only together; i.e. it can’t assume 1 of the 2 roles and assign the other.
I would like to assign the Raspberry Pi 3 Model B+ a new IP address. How do I go about this while minimizing connectivity disruptions to clients on the LAN?