It's Kubuntu to be more precise. BTW my network works and i have tried to remove the 32bit architecture/packages.
sudo do-release-upgrade Checking for a new Ubuntu release Get:1 Upgrade tool signature [1,554 B] Get:2 Upgrade tool [1,319 kB] Fetched 1,320 kB in 0s (0 B/s) authenticate 'eoan.tar.gz' against 'eoan.tar.gz.gpg' Authentication failed Authenticating the upgrade failed. There may be a problem with the network or with the server.
EDIT: So what i did was to open sources.list and substitute "disco" with "eoan". It everything works so far after the upgrade.