X870E Taichi Lite connecting at 100 mbps

[junpit]

my X870E Taichi Lite has an issue with it’s wired networking. It uses the Realtek family driver and is supposedly rated for 5gbe. Mine connects to my deco WiFi 7 router at 100 mbps. It should be connecting at 2.5gbe.

I have a couple of 2.5 gbe switches which work ok with the decos. Is this something other people have come across?

Thanks.