Questions[kde-connect](ubuntu)

I have two desktop with Kubuntu and one smartphone, all are equipped with kdeconnect.

Until Kubuntu 20.04 all devices were paired and each one could see the other.

Since Kubuntu 20.10, desktops can see the smartphone, the smartphone can see both the desktops, but one desktop can't see the other desktop and vice-versa.

I tried to purge kdeconnect, same result.

One curious thing: if I try to search for new devices from one desktop, it seems to find the other one, as for an instant its name shows in the list, but it disappears immediately!

EDIT:

I'm able to pair two desktop (Kubuntu 20.10 - let's say PC1 and Kubuntu 20.04 - let's say PC2) in my Home network. When I go to my company network, I can't pair my desktop PC1 (same as above) with another Kubuntu 20.10 (let's say PC3). No firewall on both PC1 and PC3, no firewall on the Network. On the same Company Network, PC1 and PC3 paired correctly until Kubuntu 20.04.

I was trying to setup the UFW firewall to allow my smartphone connecting my Ubuntu with KDE-connect and I saw this recommended configuration for UFW in KDE community (https://community.kde.org/KDEConnect):

sudo ufw allow 1714:1764/udp
sudo ufw allow 1714:1764/tcp

But this raise me some question around this... Can this configuration be considered a vulnerability? Can someone outside my local network use these ports to get access to my data?

So I thouhgt to use this configuration instead:

sudo ufw allow proto tcp from 192.168.0.0/24 to any port 1714:1764
sudo ufw allow proto udp from 192.168.0.0/24 to any port 1714:1764

Is this a better practice to avoid a vulnerability and force UFW to accept only connections within my local network?

I found a similar question here, but the answers did not solve my problem. KDE connect can not browse my android phone

I know how to use a file server in my home. I am not looking for alternatives. Thank you.

When I run kdeinit5 from command and log errors while starting the browse function of kdeconnect I get the following:

kdeinit5: Shutting down running client.
kdeinit5: preparing to launch '/usr/lib/x86_64-linux-gnu/libexec/kf5/klauncher'
kdeinit5: Launched KLauncher, pid = 5595, result = 0
Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString)
kdeinit5: opened connection to :0
kdeinit5: Got EXT_EXEC '/usr/lib/x86_64-linux-gnu/libexec/kf5/kioexec' from launcher.
kdeinit5: preparing to launch '/usr/lib/x86_64-linux-gnu/libexec/kf5/kioexec'
command= "gnome-software --local-filename=%f" args= ("gnome-software --local-filename=%f", "kdeconnect://0000000000")
kdeinit5: Got EXEC_NEW '/usr/lib/x86_64-linux-gnu/qt5/plugins/kio_kdeconnect.so' from launcher.
kdeinit5: preparing to launch '/usr/lib/x86_64-linux-gnu/qt5/plugins/kio_kdeconnect.so'
kdeconnect.kio: Setting host:  "000000000"
kdeconnect.kio: Stat:  QUrl("kdeconnect://000000000")
Copying QUrl("kdeconnect://000000000")  to QUrl("file:///home/username/.cache/kioexec/krun/5603_0/")
kdeinit5: Got EXEC_NEW '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/file.so' from launcher.
kdeinit5: preparing to launch '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/file.so'
Aborting aboutToFinish handling.
All files downloaded, will call slotRunApp shortly
No files downloaded -> exiting
kdeinit5: PID 5608 terminated.
kdeinit5: PID 5606 terminated.
kdeinit5: PID 5603 terminated.

I just started using kde plasma and I'm not sure if the gnome components are creating the issue. And if so which gnome components are the issue.

I set up KDE Connect on Kubuntu 18.04. Ping and the File Explorer are working fine from the desktop. I am able to recieve, read and respond to SMS. However, I have no clue how I can send an SMS, when I try to start the process from the desktop:

This is my current verions of kdeconnect listed by dpkg -l

ii  kdeconnect                                      1.3.1-0ubuntu0.1                                  amd64        connect smartphones to your KDE Plasma Workspace

I am using Ubuntu MATE and while trying to download kdeconnect, I found that it tries to pull about 150MB of plasma dependencies along with it. Why is it like that? I don't even think breeze and breeze-icon-theme should be a dependency. I am no expert but it just seems wrong to me. Is there no GTK-based alternative that does the same things as kdeconnect?