Just tried connecting the D-Link to the Archer by a short 1m cable ( the cat6 UTP on my attic is around 20m ) and boom cabled connection to the D-Link gives 600mbit internet - sooo there might be...

Hey I have confirmed the speed directly connected to the Archer c3200 to 600mbit How do I verify the negotiation speed to D-Link LAN port? Im on win10

I have a Archer c3200 which handles my 600mbit internet connection, furthermore ive set up and older ( still 1gbit ) d-link dir 825 as AP connected LAN to LAN with a cat6 cable. The D-link has DHCP...