如何解决docker下载镜像时net/http: TLS handshake timeout错误？

替换

/etc/docker/* 两个文件

daemon.json 

内容：

{
  "registry-mirrors": ["https://registry.docker-cn.com"]
}

key.json

内容：

{"crv":"P-256","d":"HHRqgw82Mdx8CJMqG_EmcZQ7kB3_A41qXxu4BPx-lhI","kid":"SE3W:JOI7:5UXH:VND2:EQVT:4MAX:KXTO:HXA7:Z2ED:4BV5:ILDB:ZDDV","kty":"EC","x":"BUlJ9Fi3ce5CsYvS-B8SInZAp0oBc0MJFoGMjko-te0","y":"sU8ObfzzChO1C-eCYlnkwZNzhgam3MNZZCFVOq-GoTA"}