The os on the vm is windows server 2019 standard, the version of proxmox is 7.4-3. They use the usb drive to back up there data, I set it up to pass the usb port though orginaly and it workd for a while. Now some times it works and some times it doesn't. I looked at lsusb and it shows the toshiba hard drive and info usbhost shows it as well how ever it doesn't show any where in file explorer and I don't see any thing in the device manager. Not sure what I should do. I have removed the usp passthough and readded though the gui, I have als removed it and added though the comand line with the qm set.