When the Thunderbolt 4 Dock (ST-UCT4DM) powers on but your computer does not detect the dock or its accessories, run these steps.

How to get your computer to detect the Thunderbolt 4 Dock

1. Connect the dock with the included Thunderbolt 4 cable, into a Thunderbolt or USB-C port on your computer that supports data and video, not a charging-only port.
2. Connect the dock's external power supply, since the Thunderbolt 4 Dock is not bus powered and needs its own power to run.
3. Reseat the cable at both ends, and connect one accessory at a time to find any single device causing the issue.
4. Test the dock on another computer to confirm whether the issue is the dock or your computer.
5. Update your operating system to the latest version.