Having issue with networkmanager

I just want to know how to diagnose a strange behavior and if all is correct on my installation regarding the network.
I had something wrong related to kdeconnect. Now I have a passimd application which is running and I don’t know if this is all correct to have this one running.
I just need to be reassured during the night my smartphone which is connected also to kdeconnect lost the wifi signal.

passim is a local caching server that is typically a dependency of fwupd.

But what exactly do you want to achieve?

Do no know what happened but seems security issues.
Seems that after a reboot… and disconnecting a faulty device it’s all clear.
there was an issue with kdeconnect or avahi-daemon I think.

what is bringing me attention is the usb device which was maybe used without my authority.