Hello more knowledgeable people than me out there,
I hope someone here can help me. I just upgraded from 41 to 42 and have no internet connection now, not via ethernet, not via wifi and not via phone hotspot wifi (graphically always question mark in the right corner).
I also cannot ping any address except my own. I tried as sudo and as root via sudo su.
E.g. if I try to ping my home router at 192.168.1.1 (or any other device on the local network), it says:
From 192.168.1.8 icmp_seq=1 Destination Port Unreachable
ping: sendmsg: Operation not permitted
I also tried the solutions mentioned here and here.
I also tried using public DNS servers instead of the router’s one by changing the DNS settings via the graphic interface, and I tried using a manual IP address instead of DHCP.
I have tried sudo fixfiles onboot.
I have tried resolvectl query 1.1.1.1 which gives me as output:
1.1.1.1: resolve call failed: All attempts to contact name servers or networks failed.
I am not that tech savvy, so I very much hope someone here can help me.