@terziyski I'm using a fully working Archer C6 v2.0 C6 LAN -> AX1800 WAN. First, I connected the fiber media converter to AX1800 WAN but the same only 100Mbps.

@terziyski Yes, I'm using the original cable 5e from the kit. With the same cable, all LAN ports run at 1000Mbps and the WAN at 100Mbps. So, is that the cable's fault? Nonsense.

Hello. I have a problem with my AX1800. The WAN only connects at 100Mbps. After disabling autonegotiation and setting it to 1000Mbps, it still connects at 100Mbps. I've tested the other LAN ports...