Similar to https://community.sunrise.ch/d/36236-why-sunrise-is-blocking-custom-dns-server
But for me not even Google is now working as DNS:
nc -zv 8.8.8.8 53
nc: connect to 8.8.8.8 port 53 (tcp) failed: Connection timed out
dig @8.8.8.8 google.com
;; communications error to 8.8.8.8#53: timed out
;; communications error to 8.8.8.8#53: timed out
;; communications error to 8.8.8.8#53: timed out
Why is Sunrise blocking me for choosing my own DNS provider and how can I fix this?
Also, when I enable a VPN client on my router, it works.