For the machine type you might read [1] to get some more background. I'm glad that it works on the second machine, but that makes it even more puzzling what might curse your first one :-/
[1]: https://wiki.ubuntu.com/QemuKVMMigration -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1797715 Title: Libvirt kvm windows guest has no network after upgrade to 18.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1797715/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs