My router and wifi work fine for all devices. However I prefer to use an ethernet when I want to play online games with my laptop. When I start the computer with an ethernet b/t my laptop and the router, the internet and wifi drops entirely for all devices and even the laptop w/ the ethernet doesn't have internet. If I restart the router and modem while the laptop is ethernet'ed to the router, it says there's an internet connection, but nothing loads. So then I restart the laptop and the internet connection drops again. What could cause this?