chenzhen-awaken

Err:1 http://mirrors.nju.edu.cn/raspbian/raspbian buster/main armhf libapt-pkg5.0 armhf 1.8.2.3 Cannot initiate the connection to mirrors.nju.edu.cn:80 (2001:da8:1007:4011::3). - connect (101: Network is unreachable) Could not connect to mirrors.nju.edu.cn:80 (210.28.130.3), connection timed out Err:2...