On 06.01.2026 15:25 Philip Prindeville via bind-users wrote: > And if I modify isc-dhcp to hand out 1.1.1.1 and 1.0.0.1 as name > servers instead, things don’t work any better, so yeah… looks like a > packet loss issue. > > Which is weird, because when speediest does manage to run, I > sometimes see 630/95mbs … other times… 45/19mbs.
Maybe your ISP handles that differently. Try mtr to the speedtest server and also try UDP speedtests. Also run speedtests using iperf. PS: Such a packet loss breaks most communication protocols, so it is definitely not a BIND issue. Feel free to try to ping tr.dorfdsl.de, it will reply to ICMP echo request and ICMP is not blocked. -- Visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list.

