大家好，我最近碰到个棘手的问题：之前用ZeroTier One做隧道SSH连接远程服务器一直没毛病，但最近大部分时候ping目标IP都会返回request timed out，只有极少数情况能侥幸连上，而且连上后也撑不了多久。

我已经尝试过这些操作，但都没解决问题：

• 关闭本地防火墙：没有带来稳定的改善，超时情况还是随机出现
• 刷新DNS并重置IP：一开始这方法还能偶尔奏效（但成功率不到一半），每次连上后只能用几分钟，还得重启电脑才行；但现在连这招也不管用了，现在每次尝试要么返回destination host unreachable，要么就是请求超时，一次都连不上了

我还跑了一次 traceroute，输出结果如下：

1 19 ms 4 ms 9 ms 192.168.12.1
2 * * * Request timed out.
3 * * * Request timed out.
4 * * * Request timed out.
5 * * * Request timed out.
6 * * * Request timed out.
7 * * * Request timed out.
8 * * * Request timed out.
9 * * * Request timed out.
10 * * * Request timed out.
11 * * * Request timed out.
12 * * * Request timed out.
13 * * * Request timed out.
14 * * * Request timed out.
15 * * * Request timed out.
16 * * * Request timed out.
17 * * * Request timed out.
18 * * * Request timed out.
19 * * * Request timed out.
20 * * * Request timed out.
21 * * * Request timed out.
22 * * * Request timed out.
23 * * * Request timed out.
24 * * * Request timed out.
25 * * * Request timed out.
26 * * * Request timed out.
27 * * * Request timed out.
28 * * * Request timed out.
29 * * * Request timed out.
30 * * * Request timed out.
Trace complete.

有没有熟悉ZeroTier或者网络排查的朋友能帮忙分析下问题出在哪？感谢各位的指点！

备注：内容来源于stack exchange，提问作者Coco Zeng