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M. Colom i Bernadich avatar Ubuntu

Ubuntu 20.04.1: connected to WIFI/Wire but no internet

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M. Colom i Bernadich

Wireless networks are detected and I am able to connect to them. Same goes for wired network. Yet, once actually trying to use a browser or connect to a remote server, it states that servers cannot be reached. For instance, if I write on command ping google.com it says that the service is not known, and on browser it always says "server not found". But if I write nmcli device, it indicates that I am connected, even though I know this is not true. ifconfig shows:

RX packets 31567 bytes 11153602 (11.1 MB)

RX errors 0 dropped 0 overruns 0 frame 0

TX packets 25736 bytes 3313999 (3.3 MB)

TX errors 0 dropped 0 overuns 0 carrier 0 collisions 0

So I don't seem to have a problem here. resolvectl indicates:

Current Scopes: DNS

DefaultRoute setting: yes

LLMNR setting: yes

The remaining settings say no. The file /etc/resolv.conf seems to be in place, so the problem is probably no there either. And in case anyone wonders, ping localhost shows the expected result.

I have tried using several networks: they all work on other devices, except for mine. In fact, I have Ubuntu on a drive partition, and if I log into my Windows partition I can use the internet without trouble, this only happens on Ubuntu. I have also tried to reebot my machine, but it makes no difference. Does anybody know what else can I check/troubleshoot?

This only started happening today, yesterday I was able to use the internet without a problem in Ubuntu.

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Minsky avatar
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Minsky
what do `journalctl -e | grep NetworkManager`, and maybe `nmcli general` say? Did you change any of the IPs manually?
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M. Colom i Bernadich avatar
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M. Colom i Bernadich
```nmcli general``` says ```connected full enabled enabled enabled enabled``` ```journalctl -e | grep NetworkManager``` has many entries. The last one says ```state changed extended -> extended```. I have not attempted to change any IP recently.
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waltinator avatar
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waltinator
Look at the logs! `sudo journalctl -b 0 -u NetworkManager`. Read `man journalctl`.
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