我第一次打开电脑时，会连接到 WiFi 网络。前 5-10 分钟我只能访问我经常使用的网站。例如，我可以访问 google.com，但无法访问任何其他网站的链接。Firefox 显示“嗯。我们找不到该网站。”页面。
在 Firefox、Chrome 和 Chromium 上也是一样。我目前使用的是 Kubuntu 20.04，但在 Linux Mint 20 和 Ubuntu 20.04 上也遇到了这个问题。
有线互联网连接没有遇到任何问题。
:~$ host 8.8.8.8
8.8.8.8.in-addr.arpa domain name pointer dns.google.
:~$ host www.ebay.com
www.ebay.com is an alias for slot9428.ebay.com.edgekey.net.
slot9428.ebay.com.edgekey.net is an alias for e9428.b.akamaiedge.net.
e9428.b.akamaiedge.net has address 104.87.5.104
:~$ ls -al /etc/resolv.conf
lrwxrwxrwx 1 root root 39 Aug 28 14:11 /etc/resolv.conf -> ../run/systemd/resolve/stub-resolv.conf
:~$ cat /etc/resolv.conf
# This file is managed by man:systemd-resolved(8). Do not edit.
#
# This is a dynamic resolv.conf file for connecting local clients to the
# internal DNS stub resolver of systemd-resolved. This file lists all
# configured search domains.
#
# Run "resolvectl status" to see details about the uplink DNS servers
# currently in use.
#
# Third party programs must not access this file directly, but only through the
# symlink at /etc/resolv.conf. To manage man:resolv.conf(5) in a different way,
# replace this symlink by a static file or a different symlink.
#
# See man:systemd-resolved.service(8) for details about the supported modes of
# operation for /etc/resolv.conf.
nameserver 127.0.0.53
options edns0
search Belkin