Macbook Air M1, IB-DK4070-CPD not recognised by DisplayLink, poor Ethernet speed

[dsuser108]

Hello,

ICY BOX (Raidsonic) IB-DK4070-CPD is not being recognised by DisplayLink Manager.
I don't know if thats related but i have installed it to check if it speeds up the Ethernet connection over this dock. It should have 1000 Mbit but has only 120 Mbit.
Installing newest DisplayLink Manager Software didn't change that behaviour.
DisplayLink Manager does not recognise this device.
Ethernet Speed is correct if I connect the dock to Windows 11 laptop.

Please advice what ca be done to fix that.

Mac OS Sonoma 14.6.1
DisplayLink Manager 1.10.3 Build 34
USB Device allowed
Screen and System Audio Recording allowed