Thanks so much for sharing those detailed instructions! It led me on the right path. However, after applying the settings I had still two DNS servers: 192.168.1.1. AND 1.1.1.1
Only after setting ipv4.ignore-auto-dns to yes it started working. So after the command described in the article:
set ipv4.dns 1.1.1.1
additionally enter:
set ipv4.ignore-auto-dns yes
Good luck and thanks again Matthew!