How can you identify if your USB port or device is at fault?

1 Basic Checks

Start by performing some basic checks. Ensure that the USB device is properly connected to the port. If it's loosely connected, it may not function correctly. Also, check for any physical damage on the USB port or the device's connector. Dust and debris can obstruct the connection, so clean the port gently using a can of compressed air. Sometimes, simply restarting your computer can refresh the system and resolve any temporary glitches that might be affecting the USB ports.

2 Swap Devices

To isolate the issue, try plugging the suspect USB device into a different port on your computer. If it works in another port, the original port may be at fault. Conversely, connect a different, known-to-be-working USB device to the original port. If this device also fails to work, it's likely that there's an issue with the port itself rather than the USB devices you're trying to use.

3 Update Drivers

Outdated or corrupted drivers can cause USB ports to malfunction. Access your computer's Device Manager (you can search for it in the Start menu). Under 'Universal Serial Bus controllers', right-click on each USB port and select 'Update driver'. If updates are available, install them. If the problem persists, right-click and select 'Uninstall device', then restart your computer which will automatically reinstall the drivers.

4 Power Management

Sometimes, power management settings can cause USB ports to stop working properly, especially if your computer is trying to save power. In Device Manager, under 'Universal Serial Bus controllers', right-click on USB Root Hub, select 'Properties', and then 'Power Management'. Uncheck the option 'Allow the computer to turn off this device to save power'. After applying this change, restart your computer and check if the USB port is functioning correctly.

5 System Settings

Your operating system's settings can also affect USB functionality. For Windows users, access the Control Panel and navigate to 'Hardware and Sound', then 'Power Options'. Click on 'Change plan settings' next to your active power plan and go to 'Change advanced power settings'. Ensure USB settings are set to prevent ports from being turned off. On a Mac, resetting the System Management Controller (SMC) can sometimes resolve USB-related issues.

7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?