@trelane said: When I turned off "Manage Citrix PV drivers via Windows Update" (has-vendor-device=false) to switch from XenServer VM Tools, Windows treated the NICs as new adapters. That bug had already cost me so much time. It has a looong history and seems to be "nailed in" when the VM had old tools installed at some point. I didn't have that problem with newer VMs that never had old tools tho.