My internet source cable is plugged into the 2.5Gbps port, and the Internet Port Negotiation Speed Setting is on Auto Negotation. This auto negotiates to 100mbps when my internet service is rated up to 500mbps. If I try and change this to "1000mbps Full Duplex" (the next setting up) the wifi stops working and the router doesn't find an internet connection. I have previously gotten 300-400mbps on ethernet, but now can only get around 95mbps. I have a Cat-5E cable plugged in as the ethernet source and am wondering if anyone has any solutions to my Internet Port Negotiation Speed Setting problem.