I have been using a Dell Venue 8 Pro and a MS Surface with my UD-PRO8 for years. It has been working just fine with my MonoPrice KVM switch.
I had an issue where the Dell Bluetooth keyboard, that was made for the Venue 8, stopped working and causing BSOD. I could not fix the issue in Windows 8.1 so I wiped the Venue 8 and did a fresh install of Windows 10. Everything works now except for the mouse that is connected to the KVM switch. It works for approximately 20 seconds after boot and then stops working. Only the mouse stops working. The keyboard that is connected to the KVM continues to work. Both the keyboard and mouse are basic USB devices.
When the mouse stops working, it still shows in the Device Manager. I have plugged that mouse into one of the USB ports on the dock and it never stops working. I have tried a different mouse on the KVM and it stops working too.
I have gone through the Device Manager and unticked power saving for all devices but that did not help.
What could be causing this?