Hello, I have two problems one big and the other small with my KVM System I have four NICs configured on my system, and I lost the most time on reboot one NIC ? I have all clients configured in the same way and I lost on all clients the same NIC ? The NICs are configured in virt-manager 2 x Hostdev ens10 ens9 1 x Bridge (virtio) eth1 // this is the Problem NIC 1x Isolated Network (virtio) eth0 I have configure two even Computers and have on all the same problem? have any a idea what is wrong with the Network? On a other System with three NICs near the same configuration all is working? The second Problem is, I can't disable the IPv6_PRIVACY on "ens9" I have all disabled in the Kernel I set it in the ifconf-ens9, but I have the most time a privacy IPv6 Address ? after a "systemctl restart network" the IPv6_PRIVACY is gone ? What is different on a boot initial and a systemctl restart network ? -- mit freundlichen Gr??en / best regards, G?nther J. Niederwimmer