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My S1002 disconnects and reconnects its dock whenever something tries to access the dock HDD after a short rest. For example, if nothing is using the HDD for a few minutes, then I go into explorer and open the HDD, it's gonna open for a couple of seconds, then I hear the disconnecting sound and lose everything connected to the dock (keyboard, mouse, HDD, any external USB devices). Then I will immediately hear the "device connected" sound several times and have evrything connected to the dock working again -more or less. The dock keyboard would go into numpad mode and I have to disable it with Fn+F11. I will have 30min of access to the HDD before it disconnects and reconnects again (e.g. when playing music, transfering a file or saving a file).
I also get the random disconnects and reconnects that other users experience, as per these posts:
Sometimes it will also not detect the dock devices on startup and can only be fixed by a restart.
It's probably not a hardware problem since I cannot replicate the problem when in BIOS/UEFI settings. This only happens in windows. The only time I ever lose keyboard functions on UEFI the screen is when I detach the dock, I re-attach dock and I get the keyboard back.
Also I noticed that the HID Keyboard Device appears twice in the device manager. I never get the "no dock" problem on startup if I uninstall the keyboards from the Device Manager then do a restart. The "disconnect reconnect on HDD access" will still be there maybe 80% of the time though.
If I connect a second keyboard through the dock USB, I get 4 "HID Keyboard Device" entries. I also noticed several repeating generic names listed under "Human Interface Devices". Detaching the dock removes all the generic names and their clones, leaving just the unique ones.
I also noticed that a lot of power management settings are unavailable. I cannot see whether this happens because windows turns off the USB devices after a while.
Edit: So I tried to play music from the HDD, and as this was the first time after some rest the dock disconnected as expected. But this time, instead of reconnecting and letting me play music I got a BSOD because of DRIVER_IRQL_NOT_LESS_OR_EQUAL (Wdf01000.sys)