I have a Deco P9 system set up in with three P9's being used in conjunction with a Virgin Hub router.  The hub is setup in modem mode and the Deco system is being used as the main wifi system.

Everything appears to be pretty stable using wifi but my work laptop has a Lenovo thunderbolt docking station and I figure it would be better if I connect to this using an ethernet cable running from one of the slave P9's.

Whenever I connect the ethernet cable to the dock it doesn't register the connection at all.  I've tried rotating the P9's and it doesn't change anything.

Can someone please advise if I'm doing something incorrectly?

Thanks.