Mac版 有道云笔记登陆出现问题 (使用用户名密码方式登陆)

有很多人反馈这样一个问题: 有道云笔记 Mac版 输入用户名密码登陆不上去。

这个问题的原因可能是这样的:你们公司的网络封掉了 note.youdao.com 443 端口。所以先试试 telnet note.youdao.com
443 看看是否能正常通信。如果提示连接不上,那就果断的找找你们公司的IT部门吧。

抓包如下:

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14:39:00.587381 IP 10.242.48.210.63785 > note.youdao.com.https: Flags [S], seq 128747375, win 65535, options [mss 1460,nop,wscale 4,nop,nop,TS val 1067401063 ecr 0,sackOK,eol], length 0
14:39:01.690971 IP 10.242.48.210.63785 > note.youdao.com.https: Flags [S], seq 128747375, win 65535, options [mss 1460,nop,wscale 4,nop,nop,TS val 1067402161 ecr 0,sackOK,eol], length 0
14:39:02.793906 IP 10.242.48.210.63785 > note.youdao.com.https: Flags [S], seq 128747375, win 65535, options [mss 1460,nop,wscale 4,nop,nop,TS val 1067403258 ecr 0,sackOK,eol], length 0
14:39:03.896801 IP 10.242.48.210.63785 > note.youdao.com.https: Flags [S], seq 128747375, win 65535, options [mss 1460,nop,wscale 4,nop,nop,TS val 1067404357 ecr 0,sackOK,eol], length 0
14:39:04.901675 IP 10.242.48.210.63785 > note.youdao.com.https: Flags [S], seq 128747375, win 65535, options [mss 1460,nop,wscale 4,nop,nop,TS val 1067405357 ecr 0,sackOK,eol], length 0
14:39:05.906948 IP 10.242.48.210.63785 > note.youdao.com.https: Flags [S], seq 128747375, win 65535, options [mss 1460,nop,wscale 4,nop,nop,TS val 1067406357 ecr 0,sackOK,eol], length 0
14:39:07.916512 IP 10.242.48.210.63785 > note.youdao.com.https: Flags [S], seq 128747375, win 65535, options [mss 1460,nop,wscale 4,nop,nop,TS val 1067408357 ecr 0,sackOK,eol], length 0
14:39:12.429264 IP 10.242.48.210.63785 > note.youdao.com.https: Flags [S], seq 128747375, win 65535, options [mss 1460,sackOK,eol], length 0
14:39:20.701959 IP 10.242.48.210.63785 > note.youdao.com.https: Flags [S], seq 128747375, win 65535, options [mss 1460,sackOK,eol], length 0
14:39:36.845313 IP 10.242.48.210.63785 > note.youdao.com.https: Flags [S], seq 128747375, win 65535, options [mss 1460,sackOK,eol], length 0
14:40:08.967998 IP 10.242.48.210.63785 > note.youdao.com.https: Flags [S], seq 128747375, win 65535, options [mss 1460,sackOK,eol], length 0

发现seq一样,说明第一个包一直在重传。所以是网络问题导致的。
另外还需要看一下note.youdao.com的域名IP是否正确。这个域名很有可能被小的运营商劫持。正确的IP是:

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ping note.youdao.com
PING note.youdao.com (123.58.182.252) 56(84) bytes of data.