Network is available, browser can connect to the internet, but the installer can’t, so only offline installation available.
The suggestion given in a similar post (1 year ago, still the same issue!): changing "cinternetCheckUrl: https://geoip.kde.org/v1/calamares to: internetCheckUrl: https://kernel.org " didn’t help.
Also, during creating an encrypted partition (Root) the installer just getting closed and stop running.
Any help would be appreciated.