1 person found this helpful
Is it a USB 3.0 port on the physical machine?
The ports through which it works, is it a USB 2.0 port?
Are all USB devices connected to the VM through that particular port affected?
In Workstation 9 this can happen independant of any issues with USB 3.
Even on a host with USB 2 only that produced absolute reliable results in WS 7 I get this problems.
It does not help to shut down all VMs, restart vmusbarbitrator and Workstation.
The only reliable fix is a reboot of the host.
It helps to change your typical work style and really use USB-devices with care. Do not unplug/replug any devices if there are ways around it.
Do not expect that VMs that used USB can be suspended - strange things will happen ...
Be very careful if you use USB-disks mounted in the host.
Starting a suspended VM can steal the device from the host - and only a reboot can solve the issue
USB Port that caused the problem has USB 3.0.
Actually, it was working fine until I tried to mount an SD/MMC Card reader to guest OS.
I doubt it will have anything to do with the SD/MMC.
This might be helpful. I wrote and published this few days back.
Host and guest OS USB 3.0 and virtual xHCI support with Workstation 9