Horizon Support kirjoitti 10.12.2018 klo 16.19: > Hello, > > We change our mirror to new IP. Please update new IP for your mirror > (mirror.horizon.vn) > > IPv4: 103.130.59.22 > IPv6: 2403:b3c0:0:3::22 Hi, these have now been updated. And now that I have your attention, I'd like to point out that your mirror does not seem to be reachable over IPv6 even though it has an IPv6 address in DNS: $ curl -6 http://mirror.horizon.vn/centos/timestamp.txt curl: (7) Failed connect to mirror.horizon.vn:80; Connection refused Maybe a firewall issue, or your web server is not listening on the correct IPv6 address?