Started to use the OS on a daily basis with date 20250524. I succeeded to update the OS with date 20250525. Since that date I  get the error message "protocol error" when trying the update by Discover. or through the Konsole. Other updates have no problems.

Why haven't you followed the bug template and put all the required information, like the OS / distro that you use and the version of Discover?
There isn't much info in that printscreen!

(In reply to netuddki1944@gmail.com from comment #1)
> Started to use the OS on a daily basis with date 20250524. I succeeded to
> update the OS with date 20250525. Since that date I  get the error message
> "protocol error" when trying the update by Discover. or through the Konsole.
> Other updates have no problems.

I am not a developer at KDE. I am trying to do a KDE bug Triage(https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging). There is additional information required from your side. Can you please provide us with the following

1) Please provide the information 
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 
Linux Version:
that you are using. This information can be obtained by going to K menu -> Applications -> System -> Info Center or K menu -> System -> Info Center or start from console using kinfocenter command. 

2) Please provide the version of KDE Neon Linux that you are using. You can get this information by running the command "uname -a" minus the double quotes. 

3) Please provide the steps that you had taken to replicate the issue.

https://invent.kde.org/kde-linux/kde-linux/-/issues/199

Created attachment 182829 [details]
attachment-1111528-0.html

On Tue, Jul 1, 2025 at 8:20 AM <bugzilla_noreply@kde.org> wrote:

> https://bugs.kde.org/show_bug.cgi?id=506387
>
> kdmw.629@tuta.io changed:
>
>            What    |Removed                     |Added
>
> ----------------------------------------------------------------------------
>                  CC|                            |kdmw.629@tuta.io
>
> --- Comment #3 from kdmw.629@tuta.io ---
> (In reply to netuddki1944@gmail.com from comment #1)
> > Started to use the OS on a daily basis with date 20250524. I succeeded to
> > update the OS with date 20250525. Since that date I  get the error
> message
> > "protocol error" when trying the update by Discover. or through the
> Konsole.
> > Other updates have no problems.
>
> I am not a developer at KDE. I am trying to do a KDE bug
> Triage(https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging).
> There is
> additional information required from your side. Can you please provide us
> with
> the following
>
> 1) Please provide the information
> KDE Plasma Version:
> KDE Frameworks Version:
> Qt Version:
> Linux Version:
>

Operating System: KDE Linux 2025-06-30
KDE Plasma Version: 6.4.80
KDE Frameworks Version: 6.16.0
Qt Version: 6.9.1
Kernel Version: 6.15.4-arch2-1 (64-bit)
Graphics Platform: Wayland
Processors: 8 × Intel® Core™ i7-6700 CPU @ 3.40GHz
Memory: 16 GiB of RAM (15,4 GiB usable)
Graphics Processor: Intel® HD Graphics 530 (in the CPU)
Manufacturer: Gigabyte Technology Co., Ltd.
Product Name: Z270-HD3P



> that you are using. This information can be obtained by going to K menu ->
> Applications -> System -> Info Center or K menu -> System -> Info Center or
> start from console using kinfocenter command.
>
> 2) Please provide the version of KDE Neon Linux that you are using. You
> can get
> this information by running the command "uname -a" minus the double
> quotes.
>
>
As I mentioned earlier I use KDE Linux (Banana)


> 3) Please provide the steps that you had taken to replicate the issue.
>
> To exclude disturbing issues, I made a clean install on a separate empty
SSD using the latest raw version, no other software is added. The
installation indicates updates, but the KDE Linux update shows "protocol
error. The problem is permanent.


> --
> You are receiving this mail because:
> You reported the bug.


Best regards..