В 4.1.6 так и не исправлено.
Для бутстрапа почему то используются какие то свои днс вместо указанных 1.1.1.1 и 8.8.8.8. И в логе периодически вылезает:
May 21 07:08:58 ndm
Dns::Secure::Tools: unable to obtain addresses for "one.one.one.one".
May 21 07:08:58 ndm
Dns::Secure::Tools: unable to obtain addresses for "dns.google".
May 21 07:08:58 ndm
Dns::Manager: updating DNS-over-HTTPS servers addresses.
May 21 07:08:58 https-dns-proxy
Shutting down gracefully. To force exit, send signal again.
May 21 07:08:58 https-dns-proxy
Shutting down gracefully. To force exit, send signal again.