that 502 on archive.neon.kde.org is the neon repo being unreachable (bad gateway), not something broken on your box. i would wait and retry `apt update` later. if Discover already finished, your packages are probably fine and only the index refresh is failing. no need to reinstall over a temporary 502.
In Telegram’s “KDE Neon user” group, one of developers/packagers says:
<carlosd[M]> apologies for the current archive/build/debuginfod outages. all services i have access to have been restarted but the apache2 reverse-proxy requires root .. sysadmin has been notified for help
Everything is working now; the KDE team has fixed the issue.
I’m still dealing with two issues: “discover” and the USB & Storage notification window that pops up, as well as the password failure when waking from hibernation—even after the latest Plasma 6.7.5 updates and other updates.
Why doesn’t Discover see these updates? But they do show up with pkcon update?
6ubuntu2.10.amd64 MIT Kerberos runtime libraries
libkrb5support0-1.20.1-6ubuntu2.10.amd64 MIT Kerberos runtime libraries - Support library
libnetplan1-1.1.2-8ubuntu1~24.04.3.amd64 Declarative network configuration runtime library
netplan-generator-1.1.2-8ubuntu1~24.04.3.amd64 Declarative network configuration for various backends at boot
netplan.io-1.1.2-8ubuntu1~24.04.3.amd64 Declarative network configuration for various backends at runtime
python3-netplan-1.1.2-8ubuntu1~24.04.3.amd64