Since the Anniversary update and the need to recreate a new VM, I'm unable to connect any USB device to the VM, even if I set Parallels to connect every new device to the VM without asking, and also if I make fixed assignments. The external devices menu detects and shows the devices connected to the mac, but selecting them never does anything. Parallels Tools reinstalled several times, and I tried disabling USB3 support too.
Hi, Please try to connect some USB-device to VM and then send a problem report. Post here the number. Check also do you have the VirtualHere USB installed. To do this start the /Application/Utilities/Terminal.app and execute command (without quotes) "kextstat | grep virtualhere". Parallels has a known issue with VirtualHere (fix is in progress). I'll post instructions how to remove it if it is your case.
The next should help: execute in Terminal command "sudo rm -rf /System/Library/Extensions/vhhcd.kext" (without quotes) and reboot your Mac
There we go, uninstalling the VirtualHere kext using Code: sudo /Applications/VirtualHere/VirtualHere.app/Contents/MacOS/VirtualHere -y did the job, thanks for the pointer!