On 2023-01-27, Rodrigo Readi <hru...@gmail.com> wrote: > BTW, I am using Wifi with weak signal. Perhaps this plays a role?
If you have packet loss then possibly, yes. Unbound caches information about hosts that it contacts ("infra-cache") and I'm not sure but this might possibly temporarily stop it from contacting servers that have been non-responsive. Ideally you'd want to run a recursive DNS server on a machine with a good reliable internet connection, if you don't have that then you might be better off using a forwarder (possibly via a TCP or TLS connection if packet loss is particularly bad). If you hit it again, "unbound-control lookup" for a hostname that's failing to resolve might give some clues. -- Please keep replies on the mailing list.