@ph7 said in Error starting network UPS tools (NUT) driver for TrippLite USB-passthrough: @waveguide I used the PCI passthrough for my zigbee USB Dongle and it has been working perfectly since I installed it 2½ month ago [image: 1738063996972-c349c774-c4bb-4dde-97f9-887521e2a871-bild.png] Interesting idea. I am running on a Dell R710 and the USB controller is not listed as an available PCI device that I can passthrough to the guest VM. It does come up on the host as a PUSB device. The ESXi server was also an R710. [image: 1738113146366-525ece0c-93c4-4cd0-8ce5-c001961959c2-image.png]