TB16 unresponsive

Hi All, Raising a discussion for the first time here so be patient with me :) I have a Thunderbolt docking station (Model TB16; reg model K16A)) which isn't providing any service when the USB-C connector is plugged into any laptop. The TB16 itself sounds like the fan is spinning faster/is louder than normal. The "Power Adapter LED Indicator" on the front of the device (to the right of the 2 USB ports is illuminated when the USB-C cable (at the left side of the device) is connected to a laptop, however the light on the USB-C cable itself is not illuminated. I have tried swapping out another USB-C connector cable which I know works & I get exactly the same experience. Do you know if there is any other other way to interact with the TB16 so that I can further troubleshoot without connecting through the USB-C cable? I have checked the documentation for this device, but the info in there is quite limited: https://downloads.dell.com/manuals/all-products/esuprt_electronics/esuprt_docking_stations/dell-thunderbolt-dock-tb16_concept_guide_en-us.pdf Any suggestions would be greatly appreciated. Thanks, M