Discover 6.4.5 doesn't work properly in kubuntu 25.10

So, after I switched from kubuntu 24 to kubuntu 25, I had new problems with plasma-discover. This time, perhaps, I could have done something wrong that broke it, because the program was working out of the box.

First, an error appears when I go to the Updates tab:

E: https://download.docker.com/linux/ubuntu questing InRelease is not (yet) available (Unable to connect to 127.0.0.1:10808:)
E: http://security.ubuntu.com/ubuntu questing-security InRelease is not (yet) available (Unable to connect to 127.0.0.1:10808:)
E: https://ppa.launchpadcontent.net/rael-gc/rvm/ubuntu questing InRelease is not (yet) available (Unable to connect to 127.0.0.1:10808:)
E: http://archive.ubuntu.com/ubuntu questing-backports InRelease is not (yet) available (Unable to connect to 127.0.0.1:10808:)
E: http://archive.ubuntu.com/ubuntu questing-updates InRelease is not (yet) available (Unable to connect to 127.0.0.1:10808:)
E: https://hub.unity3d.com/linux/repos/deb stable InRelease is not (yet) available (Unable to connect to 127.0.0.1:10808:)
E: https://hub.unity3d.com/linux/repos/deb unstable InRelease is not (yet) available (Unable to connect to 127.0.0.1:10808:)
E: https://ppa.launchpadcontent.net/mc3man/xerus-media/ubuntu questing InRelease is not (yet) available (Unable to connect to 127.0.0.1:10808:)
E: http://archive.ubuntu.com/ubuntu questing InRelease is not (yet) available (Unable to connect to 127.0.0.1:10808:)

Well, of course, I can’t update anything through Discover.

Besides, I can’t download anything using the app.Here’s a error:

Package download failed

Here is a description of my system via kinfo:

Operating System: Kubuntu 25.10
KDE Plasma Version: 6.4.5
KDE Frameworks Version: 6.17.0
Qt Version: 6.9.2
Kernel Version: 6.17.0-8-generic (64-bit)
Graphics Platform: Wayland
Processors: 20 × 12th Gen Intel® Core™ i7-12700H
Memory: 40 GiB of RAM (38.9 GiB usable)
Graphics Processor 1: NVIDIA GeForce RTX 3060 Laptop GPU
Graphics Processor 2: Intel® Iris® Xe Graphics

I have everything OK with the Internet, I calmly download what I need through the terminal. I just don’t like that something “native” in the system doesn’t work. I didn’t like this on Windows, so I decided to switch.

For me, in general, it would be a sufficient solution to find some kind of complete replacement for Discover, but I would still like to fix it.

And yes, I have already tried all the tips on similar topics on this forum and others. Reinstallation and other things didn’t help.

And yeah sorry if this is dumb question, but I really don’t know what to do and can’t find any sollution.

Aaand I really don’t want to reinstall Kubuntu completely rn. I don’t have any backups, where Discover was working ok.

This isn’t a Discover issue, but something network related, and not from KDE at all, really.

Do you use a proxy server or anything along those lines? Wanting to connect to localhost (127.0.0.1) for apt repos is not normal. If you are, you also need to configure apt to use it as well. That will be K(U)buntu-specific, and not something that is done on the Plasma end of things.

If you use Apt directly, you might see more complete messaging.

1 Like

Thanks for info!

No, I’m not using a proxy or anything like this.

I decided to reinstall fully kubuntu in the end. This solved the problems with updates and installation. I still don’t know what exactly broke the Discover. Now I will use backups much more often xd