If you experience issues with your USB-A/USB-C data port while using your hub/dock, try the following troubleshooting steps.
 

• If you connect a device to the USB-A/USB-C data port but it cannot be recognized by your laptop or you cannot transfer data between the device and your laptop, the issue may lie with the connected laptop, USB-A/USB-C devices, or with the hub itself. 
• Firstly, if you have a Windows laptop, update the USB driver, or if you have a MacBook, update your operating system to the latest version to see if the problem persists. 
• Try the device with a different laptop to determine if the issue persists.
• If the first tip does not resolve the issue, confirm whether the device works normally without the hub, and try a different USB-A/USB-C device to determine whether it works normally when connected to the hub.
• Finally, confirm if the hub's LED light is on when it's connected to a laptop, and try using a different hub to see whether the problem persists.

If the Thunderbolt 3 downstream port is not transferring data, refer to this article:

Why-is-Anker-577-Thunderbolt-Docking-Station-s-Thunderbolt-3-downstream-port-not-transferring-data

If the Thunderbolt 4 downstream port is not transferring data, refer to this article: What-should-I-do-if-the-Thunderbolt-4-Dock-s-Thunderbolt-4-downstream-port-is-not-transferring-data

If none of the above steps help to identify and resolve the problem, contact us for further assistance. Mention the steps you have already taken for a quicker solution.