Guide used: https://www.youtube.com/watch?v=Z_sVjxu9LjE
Vodafone Smart Router
Admin: http://192.168.1.1/ (check login/password at the back of the router)
Firmware version: V5R020C10S220
Pi-hole running on Raspberry Pi 4B 8G of ram
Docker Tag 2026.04.0Core v6.4.1FTL v6.6Web interface v6.5
Address Pool Start IP 192.168.1.64
Address Pool End IP 192.168.1.220
Lease Time 1 Hour
Primary DNS Server 192.168.1.222
(DNS server is the chosen Pi-hole ip, set as static within the pi-hole docker config during install and out of the IP range of the DHCP server)
Secondary DNS Server none
My local network was disconnecting every morning, probably due to being idle, and when the Vodafone router DHCP server started renewing the IPs, the static IP of the Pi-hole was conflicting. It took around 3 min every day for the network to come back. Now, by setting the DHCP IP range in the router to exclude the IP I set for the Pi-hole, I hope it will work.
Related: https://www.reddit.com/r/pihole/comments/11o5iyi/pihole_dhcp_server_crashes_every_24_hours/