I installed Ubuntu 18.04 since almost 1 month and I'm experiencing following problems since always.
All my packages are updated, currently on 4.15.0-20-generic #21-Ubuntu SMP Tue Apr 24 06:16:15 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux.
Airplane mode on start
The first "problem" is that every time the PC starts, the "Airplane mode" is active and therefore Wi-Fi is switched off. Then I have to switch it on manually to let it connect. I also noticed in Settings->Power that I must keep Wi-Fi setting to ON because as soon as I set it to OFF, airplane mode is activated. But actually its description says Turn off Wi-Fi to save power and since I don't want to turn Wi-Fi off to save power, I thought I had to switch it OFF, but then I can't use Wi-Fi at all.
DNS is not working using Wi-Fi
While the first problem is not so serious, this one is really annoying. Basically DNS doesn't work at all when I'm connected through Wi-Fi and therefore I can't resolve any hostname. No problems using ethernet connection. So I tried to configure DNS manually on Wi-Fi connection settings, but still it's unable to resolve any hostname. The only thing that works is adding new nameserver directives to /etc/resolv.conf. However they are removed each time the computer is restarted.
I know that version 18.04 is still beta, but it should be released tomorrow 26.04.2018 as stated on ubuntu wiki and for me it doesn't seem really ready.
Does anybody have a solution at least for DNS problem?
