Question loss of usb connectivity

[Camineet]

I've got an unusual setup that has a monitor on a hospital tray with wheels along with a keyboard and mouse. The wiring is all ziptied together and goes to a desktop system next to me.

The wheeling back and forth of the setup when I get up sometimes causes total loss of connection for the keyboard and mouse. The monitor sometimes gets temporarily disconnected too. But the keyboard and mouse won't come back without a restart.

Another mouse still works that's connected to the system in a different cabling path that never moves.

Is there any way to reinitialize the USB ports of the system without restarting so I can get the keyboard and mouse on the hospital tray working again?

 

[Grobe]

Do you suspect movement in cables are the culprit of this issue ?

 

[Camineet]

Yes, it only happens when I move the hospital tray and the ziptied together cables are moved along with it. Those cables include HDMI, and USB for both the keyboard and webcam.

 

[Camineet]

I'm wondering about using Device Manager to disable and re-enable the specific USB devices that go totally offline and can't be brought back without a restart. The problem is how to identify which ones they are in Device Manager. Is there some kind of utility for doing this?

 

[USAFRet]

You don't "reinitialize" or "reenable".... you prevent this from happening.

Options:
Connect these devices to a USB hub. The hub has one connection to the PC. Strengthen that one connection.
Wireless something. Bluetooth or similar.

 

[Grobe]

Ok, I'm starting to thinking that the solution of this issue is kind of less technical.

If I have issues with cable with tension that is a threat to the connector (especially if the tension pulls 90 degre to the connector), I use to tie the cord with a Asymmetrical Prusik (Schwabisch) (sounds difficult but really simple):

Prusik Knot

Slide and grip knot used for climbing a static rope. Principal use is allowing a rope to be climbed - ascending or "Prusiking".

www.animatedknots.com

The other end can be tied to a sturdier point, maybe the leg of your table.

 

[Camineet]

Thanks for these ideas. Actually there isn't any possibility of tension on the connector points because the the place that the cables terminate and connect to the PC is far away and doesn't move. Yes, the cables are secured with zip ties to non-moving places before either connecting to the stuff on the hospital tray, which includes the monitor, keyboard, and mouse, or to the pc itself. The place that moves is around the middle of the cables' lengths. There seems to something about moving one or more of cables that causes some kind of breakage in the connection for a split second and sort zaps the usb controller into losing connection and being unable to regain it.
I'm doing some testing right now of having the keyboard connected to a USB 3.0 port on the PC instead of the 2.0 port it's historically been connected to.