I'm having a bit of an issue with my Pi. I've got RaspberryPi 4 running ONLY Pi-Hole. (No Docker or anything) I did a fresh install around 30 mins ago. It does have a static IP 192.168.1.30. I need to use DHCP on it as I have a router that comes from ISP and it does not allow to do many changes. I did turned off the DHCP on the router
I trust you set a static IP address on the OS of the machine that runs Pi-hole?
If you didn't, your machine would have lost its IPv4 as soon as its DHCP lease as acquired through your router's DHCP server had expired.
A DHCP server can't operate without an IP, so as soon as your other client DHC leases would have expired, they also wouldn't have been able to acquire a new DHCP lease, which would perfectly explain your observation.
You don't want the DHCP server to have an IP address inside the pool of addresses to give to clients. You run the risk of having the DHCP's server address assigned to a client.
Your pool is set for 192.168.1.10 through 192.168.1.240 so your static IP of 192.168.1.30 should be set to a value that is less than .10 or greater than .240.
Hi! I've tried changing pool from 40, it still turned off. The fun thing is, that before I actually updated and installed with fresh install, everything was working fine. Any other ideas?