If control of the storage device were to be switched between systems while the storage device was being accessed, there would be the same potential for data corruption. It is also the very reason we generally do not recommend using storage devices with this switch. This potential data corruption is why Windows performs a lengthy chkdsk (“check disk”) process when booting back up after a power failure or a crash, and it’s the same reason you see Windows pestering you to “check the drive for errors” when you insert a flash drive that was not properly ejected. (This is the process that results in the user seeing a corresponding drive letter for the device in Windows.) If the device is disconnected or loses power without going through the proper unmounting/ejection process, data corruption can sometimes occur. To access data on any storage device, the file system must be “mounted” by the operating system. As such, the same same storage removal precautions and “best practices” must be followed to minimize the risk of data loss or corruption.Ī bit of additional background may help to clarify this recommendation further. When the button on the switch is pressed, the net effect is essentially the same as if you were to unplug the storage device from one system, and then plug it into the other. Please contact us at for more assistance, along with a copy of the answers to the above questions to assist in troubleshooting and we'd be glad to help further. These questions should hopefully help you isolate and understand where the issues could lie. If the answer is no, then there could be a difference between the computer's USB ports.Does the problem occur when connected to other USB ports on the computer?.If the answer is just one, we're likely dealing with a host-specific problem.Does the problem occur on both computers connected to the switch or just one of them?.If the answer is yes, then this is not a problem with the switch itself and please refer to the product page of the dock or hub for more help.Do the problems still occur when the dock or hub is connected directly to a USB port on your computer (bypassing the switch)?.

With more devices connected in the 'chain', we'll want to start by better isolating where the problem could lie.

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