公司的网每到下午就不能访问国外服务器的地址了？

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能 ping 通，但网络连接超时，第二天早上又好了。

nmap  dash.cloudflare.com -p 80
Starting Nmap 7.94 ( https://nmap.org ) at 2023-06-26 16:41 中国标准时间
refresh_hostbatch: Failed to determine dst MAC address for target dash.cloudflare.com (104.17.111.184)
Note: Host seems down. If it is really up, but blocking our ping probes, try -Pn
Nmap done: 1 IP address (0 hosts up) scanned in 1.03 seconds

nmap address ping 104.17.111.184