emerge --sync first tries to contact a mirror over IPv6, times out, tries a second one over IPv6, times out, and only succeeds when the third try uses an IPv4 address: >>> Syncing repository 'gentoo' into '/var/db/repos/gentoo'... * Using keys from /usr/share/openpgp-keys/gentoo-release.asc * Refreshing keys via WKD ... [ ok ] >>> Starting rsync with rsync://[2a00:1828:a00d:ffff::6]/gentoo-portage... >>> Checking server timestamp ... timed out rsync error: received SIGINT, SIGTERM, or SIGHUP (code 20) at rsync.c(713) [Receiver=3.2.7] >>> Retrying... >>> Starting retry 1 of 3 with rsync://[2a01:90:200:10::1a]/gentoo-portage >>> Checking server timestamp ... timed out rsync error: received SIGINT, SIGTERM, or SIGHUP (code 20) at rsync.c(713) [Receiver=3.2.7] >>> Retrying... >>> Starting retry 2 of 3 with rsync://81.91.253.252/gentoo-portage >>> Checking server timestamp ... Welcome to starling.gentoo.org / rsync.gentoo.org Server Address : 81.91.253.252, 2a01:90:200:10::1a Contact Name : mirror-admin@gentoo.org Hardware : 2 x Intel(R) Xeon(R) CPU E5-2470 0 @ 2.30GHz, 3946MB RAM Sponsor : Qube Managed Services Limited, Zurich, Switzerland, EU
Root of the problem was in the modem / router that my ISP provided.
