I have a GT-AX6000 and XB7 modem (bridged) and my internet plan is 1gb down. When connecting to my router from my modems 2.5gb port my download is 890mbps. If I connect to my router from my modems 1gb port I get 940mbps. If I connect directly to my pc from my modems 2.5gb or 1gb port I get 940mbps. I've tried different cables, computers, and firmware (asus and merlin) and the results are always the same. It's not a massive speed difference but it's really bothering me, especially if I get a faster internet plan down the road.