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Why did some of my USB ports stop working?
There are several reasons why a USB device is not recognized. You could have a damaged device, or there could be a problem with the port itself. Computer has difficulty detecting USB devices. The USB Selective Suspend feature is on.
Why do USB hubs not work?
Static electricity causes ports in the hub to stop working. Disconnect the power plug and the plug connecting the hub to the USB port at the back of the computer. Wait a few seconds. Other hubs may experience static electricity problems, too.
How do I reactivate my USB ports?
Enable USB Ports via Device Manager
- Click the Start button and type “device manager” or “devmgmt.
- Click “Universal Serial Bus controllers” to see a list of USB ports on the computer.
- Right-click each USB port, then click “Enable.” If this does not re-enable the USB ports, right-click each again and select “Uninstall.”
Why is my USB hub going into selective suspend?
While multiple devices that are attached to the same hub are going into selective suspend, one of the devices on the hub can receive a wake request. If this happens before the suspend request has completed, the devices become unstable. Try these methods to work around this problem. Use Device Manager to disable and re-enable the USB root.
Why is my USB port not working in Windows 10?
When a USB port fails to work or stops working, Windows PCs or laptops won’t be able to read or detect these external storage devices. To make the USB port work again in Windows 10/8/7, you should check out the causes first. Here is a list of possible causes of USB Port not working issue:
What to do if your USB is not working?
If the device is still unrecognized, the problem exists on the device. Follow USB Drive Not Detected to fix the malfunctioning devices. If the USB or external storage device shows up, it’s the USB port error. 3. Check If Computer Pops Up Error Message:
Why are USB devices attached to the same hub so slow?
USB devices attached to the same hub are very slow or completely unresponsive. While multiple devices that are attached to the same hub are going into selective suspend, one of the devices on the hub can receive a wake request. If this happens before the suspend request has completed, the devices become unstable.