Hi infobro:
The easiest approach would be to: Using antMan, delete the network interface (defined as VirtIO) in your antlet, and then re-create new one using E1000 driver.
For our Linux templates and Windows templates that have "StdGui", they come with with VirtIO drivers pre-installed.
You can feel free to install the VirtIO drivers yourself by following these instructions:
You can download the Fedora windows virtio drivers - from within the windows antlet
This link takes you to the web page
https://docs.fedoraproject.org/en-US/quick-docs/creating-windows-virtual-machines-using-virtio-drivers/index.html#virtio-win-direct-downloads
This link will download the stable .iso
https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/stable-virtio/virtio-win.iso
Right click and mount the .iso. Then install the Balloon\WIN_VER\amd64\ballon.inf driver to take care of the unknown device in device manager.
Install the viostor\WIN_VER\amd64\viostor.inf driver for storage
Install the NetKVM\WIN_VER\amd64\netkvm.inf driver for the NIC
You will need to edit the xml for the antlet from the antsle's command line/terminal
https://docs.antsle.com/login/
EDITOR=nano virsh edit ANTLET_NAME
Look for the <disk... section and replace the target bus='e1000' with 'virtio'
and delete the <address... line. This will be recreated by virsh
<disk type='file' device='disk'>
<driver name='qemu' type='qcow2'/>
<source file='/antlets/w10instVirtio/Win10.qcow2'/>
<target dev='sda' bus='virtio'/>
</disk>
Next Look for the <interface... section and replace the model type='e1000' with 'virtio'
and delete the <address... line. This will be recreated by virsh
<interface type='network'>
<mac address='b2:61:6e:73:6c:19'/>
<source network='bblv'/>
<model type='virtio'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</interface>
You must stop then start the antlet in antMan so it can read the changes.
Yes, the XML files are located in /etc/libvirt/qemu directory but you should use virsh edit command edit your antlet's XML.