Dell engineering is aware of this issue and working on driver solution. New Realtek USB GBE Ethernet Controller Driver A28 will be published on November 9, 2022. 
Hi,   Yesterday, I updated the firmware on my WD19S dock to version 01.00.25 Since then, I have been seeing an issue with the wired LAN not always working, and the behaviour of WiFi being disconnected when the dock is connected does not seem to be working (I wonder if this is because the LAN connection has issues so it keeps WiFi enabled to accommodate?).   Physical connectivity is fine, but even though I have received an IP etc via DHCP, I am unable to ping my gateway. A reset of the ethernet adapter seems to sometimes resolve the issue for a short while before it drops again.   I have seen people report similar issues with this dock some time in the past, so not sure if this is a known issue for this firmware? WD19 docking stations - network dropout, USB dropout across multiple models - Page 40 - Dell Community Is there anything I can do, as it doesn't seem to be possible to open a ticket with Dell on this issue.   Cheers James
WD19S Firmware 01.00.25 network issues