I pay for 500 Mbps and get close to that with a direct connect to the X1 Gateway (363Mbps). When I switch to wifi using the Gateway, it drops tremendously. Even when I'm sitting right next to the Modem I only get 77 Mbps. In the next room, it drops to 45 Mbps. Upstairs I can't even get a connection. I bought and added in the XFi pods, and now upstairs I get 18 Mbps. I've reset the Gateway numerous times. What is the max wifi throughput of these Gateways? How can I improve my speeds? The gateway is on a desk, not next to anything metallic, a foot or so away from a wall.