Today after the upgrade to KDE 20.5 I am without internet: impossible set any connection, wifi or ethernet.
Secondarily I'm withou sound, but this is a minor problem.
The question is: how can solve this new bug, without internet?
Now I am in Kubuntu: should I download something from here and copy to the KDE Neon partition? But what?

I had to reinstall KDE Neon. But I have still many crashes.
Maybe an hardware problem? I checked the ram: no problems. The SSD? It could be, but Kubuntu, on the same Pc works good...