Err http://mirrordirector.raspbian.org/raspbian/ jessie/main ntpdate armhf 1:4.2.6.p5+dfsg-7+deb8u2
Cannot initiate the connection to mirrordirector.raspbian.org:80 (2a00:1098:0:80:1000:75:0:3). - connect (101: Network is unreachable) [IP: 2a00:1098:0:80:1000:75:0:3 80]

IPv4 only…