Br0 suddenly stopped passing traffic

[ilikelinux]

Welcome to ask.edora @usrbinkat

I also had problems to do a working bridge in libvirt. I tried to achieve it with the “Virtual Machine Manager” with a lot of headache.

Here the discussion where I found a solution:

Virtual Machine Manager | Bridged Network | Why so complicated to achiev?

(I use the Mate-Compiz spin on my desktop computer [IntensePC]) How I was able to achieve it: Connection Details, Virtual Networks, clicking on the "+" change mode to "Open" (the rest is all default). This creates me a "virbr0" Now I stop "virbr0" on the red minus icon and while clicking o the trash it disappears in the connection details. While changing to terminal and type nmcli c it is still active. I stop it with nmcli c down virbr0 Back in the “Connection Details” i do create "+"a new v…