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I'm connected to the internet, but whenever I ping a website, I just keep getting "Temporary failure in name resolution."

I've already tried the following:

  • changing /etc/resolv.conf to include nameserver 8.8.8.8 and nameserver 8.8.4.4
  • ensuring that there's no symbolic link that's redirecting resolv.conf as per this question
  • running sudo systemctl restart systemd-resolved.service
  • restarting my computer
  • deleting the wireless connection and reconnecting

Output of systemctl status systemd-resolved:

systemd-resolved.service - Network Name Resolution
     Loaded: loaded (/lib/systemd/system/systemd-resolved.service; enabled; vendor preset: enabled)
     Active: active (running) since Mon 2023-02-13 09:35:20 EST; 19min ago
       Docs: man:systemd-resolved.service(8)
             man:org.freedesktop.resolve1(5)
             https://www.freedesktop.org/wiki/Software/systemd/writing-network-configuration-managers
             https://www.freedesktop.org/wiki/Software/systemd/writing-resolver-clients
   Main PID: 799 (systemd-resolve)
     Status: "Processing requests..."
      Tasks: 1 (limit: 6677)
     Memory: 8.3M
        CPU: 169ms
     CGroup: /system.slice/systemd-resolved.service
             └─799 /lib/systemd/systemd-resolved

Feb 13 09:35:20 osprey-ThinkPad-T450 systemd[1]: Started Network Name Resolution.
Feb 13 09:35:31 osprey-ThinkPad-T450 systemd-resolved[799]: wlp3s0: Bus client set search domain list to: adsroot.itcs.<REDACTED>.edu
Feb 13 09:35:31 osprey-ThinkPad-T450 systemd-resolved[799]: wlp3s0: Bus client set default route setting: yes
Feb 13 09:35:31 osprey-ThinkPad-T450 systemd-resolved[799]: wlp3s0: Bus client set DNS server list to: 10.10.10.10, 10.10.5.5
Feb 13 09:40:14 osprey-ThinkPad-T450 systemd-resolved[799]: wlp3s0: Bus client reset search domain list.
Feb 13 09:40:14 osprey-ThinkPad-T450 systemd-resolved[799]: wlp3s0: Bus client set default route setting: no
Feb 13 09:40:14 osprey-ThinkPad-T450 systemd-resolved[799]: wlp3s0: Bus client reset DNS server list.
Feb 13 09:40:14 osprey-ThinkPad-T450 systemd-resolved[799]: wlp3s0: Bus client set search domain list to: adsroot.itcs.<REDACTED>.edu
Feb 13 09:40:14 osprey-ThinkPad-T450 systemd-resolved[799]: wlp3s0: Bus client set default route setting: yes
Feb 13 09:40:14 osprey-ThinkPad-T450 systemd-resolved[799]: wlp3s0: Bus client set DNS server list to: 35.0.0.12, 35.0.0.4`

What else can I try?

I'm running Ubuntu 22.04.1.

ale19
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    Try setting your /etc/resolv.conf file to the non-stub version of it. I have had great success with this especially with my router giving out DHCP. sudo rm /etc/resolv.conf then sudo ln -s /run/systemd/resolve/resolv.conf /etc/resolv.conf – Terrance Feb 13 '23 at 15:07
  • @Terrance Thank you!! That fixed it - I still couldn't connect to the primary network but I was able to limp my way into the guest network and was able to contact my IT department, who gave me a config tool to help me get set up the rest of the way. Feel free to post your comment as an answer and I'll accept it. – ale19 Feb 13 '23 at 15:51
  • Have you edited your network configuration for the wireless after adding it to statically set your DNS servers to Google DNS? Your logs show that DHCP on the wifi network is overriding your DNS settings, hence your problem - Feb 13 09:40:14 osprey-ThinkPad-T450 systemd-resolved[799]: wlp3s0: Bus client set DNS server list to: 35.0.0.12, 35.0.0.4 – Thomas Ward Feb 13 '23 at 17:07

1 Answers1

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Try setting your /etc/resolv.conf file to the non-stub version of it. I have had great success with this especially with my router giving out DHCP.

sudo rm /etc/resolv.conf

sudo ln -s /run/systemd/resolve/resolv.conf /etc/resolv.conf
Terrance
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