USB-C hubs are devices that allow you to connect multiple devices to a single USB-C port. They are typically used to connect laptops to external displays, printers, and other devices. If a USB-C hub is faulty, it can cause a variety of problems, including: - Devices not being recognized by the laptop - Devices not working properly - The laptop freezing or crashing To troubleshoot the issue, the technician should try the following: 1. Disconnect the USB-C hub from the laptop. 2. Connect the devices that were previously connected to the USB-C hub directly to the laptop's USB-C ports. 3. Check to see if the devices are now working properly. If the devices are now working properly, then the USB-C hub is faulty and needs to be replaced.