Just purchased the RT-AX86U and using ASUS firmware 3.0.0.4.388_22525-gd35b8fe. With adaptive QoS turned off (turned on will only get 1.5G/950)
SETUP:
[Bell Fibe 3.0 Gbps, with 10G port] ---- Cat 6e, (tested with usb 2.5G NIC, got ~2.5G) ---- RT-AX86U (with 2.5G WAN port).
Using the ASUS...