Please follow the below template, it will help us to help you!
Pi-hole IP entered in router DNS does not break internet connection; Pi-hole IP entered in computer DNS blocks ads.
Pi-hole IP, entered in router’s DNS breaks internet connection. Pi-hole IP entered in computer DNS does not break internet connection but allows ads.
Debug Token: https://tricorder.pi-hole.net/r7j6qosrv1!
[Replace this text with the debug token provided from running
pihole -d (or running the debug script through the web interface]