Loss of internet once DHCP enabled

I enabled DHCP on my pihole after using it with DNS for a bit because I need better DHCP control than what my router gives.

Prior to enabling DHCP on the pi everything worked fine, now with the pi set for DHCP and the router disabled, my phone has no internet access when connected to wifi. I can see the DHCP server setting IP address in pihole settings

I am running it via docker with a relay in place.

What am I missing?