Yesterday the internet wasn't reachable. Firefox wasn't working, in terminal I tried
links2 www.cnn.com and it wasn't working either; I tried
dig <somesite> and it was working; I also tried with a wifi dongle.
As it comes out of nothing when I turned on the PC, in the mmid-morning the problem went away and everything worked in regular way. I though it was over but today is even worse.
- unplug the eth cable and plug it again
- using the USB dongle (already used in the past) to connect via wifi
- links2 in terminal
- changed the DNS from OpenDNS to the Google one
- changed from "DHCP" to "manual" in the connection parameters in network setting
- reset the router
To check if was just my user or the entire system i logged as my sister's user and verified that user can't use internet, too.
As a final test I started windows which is in dual boot on the same machine, that means the averything is the same in ubuntu. It worked! I'm using it to write now.
I haven't changed nothing in the last two days (14 oct 2021); for what I remeber, where was an automatic update of the network stuff and of the entire kernel.
Am I the only one facing this issue?
Any suggestion to investigate what is going wrong?
Thank in advance
sudo journalctl -b 0 -u NetworkManager. Read
man journalctl. Read askubuntu.com/questions/how-to-ask