USB2 not working on dock

[AlbanRampon]

This is not what I tried to say.
You wrote that you have issues with the USB slots on the product.
I'm saying this is not DisplayLink technology.

DisplayLink is a semiconductor company.
We do not design, manufacture or sell any end product.
What we do is a chip. That chip is connected to the on-board USB hub that the manufacturer has chosen to design in.
That chip can work both on USB 2 or USB 3 and does HDMI and Ethernet and audio. The driver doesn't (and cannot) control devices which don't have our hardware vendor ID.
You said you don't have a problem with the features that the chip delivers.
Therefore I'm recommending you contact the manufacturer as I have no way of debugging something my company didn't do.

Kind regards,
Alban