When you troubleshoot issues with a USB hub, there are some quick tests that you can complete to rule out potential problems. You can test to make sure that the following components are working correctly and are not the source of the issue:
USB A-to-B cable
Computer USB port
To test your setup components, try the following:
Use the USB cable and USB peripheral(s) in another setup to see if the problem is with the components or the setup.
Use a different USB cable, USB port, and USB peripheral in your setup to see if the problem persists. Ideally, you should test a component that you know works in another setup.
When you test your cables, it is recommended that you do the following:
Test each cable individually.
Use short cables when you are testing.
When you test the hub, make sure that you do the following:
If a power adapter is included, provide power to the USB hub.
Attach a USB peripheral. The USB hub will not appear in any hardware listings on your system, but USB devices do appear when they are connected.
Install the drivers for the USB peripheral.
Install the latest drivers for the USB controller and motherboard chipset.
Note: No drivers or software are required for the USB hub to work with your operating system. The USB hub works independently of software and works with any operating system.
When testing your USB peripherals, make sure that you do the following:
If required, attach external power.
Confirm that the peripheral works on a standard USB port.
If the USB peripheral(s) can be detected on a standard USB port and not on the hub, do the following:
Use a new USB A-to-B cable.
Test your setup using basic USB peripherals, such as a keyboard or mouse.
Test using another USB port.