I have the XB3 gateway device, and Wifi is working fine. For some of my devices, ethernet is working fine also, and these devices have an orange/amber light where the ethernet plugs in. For my PC, I can't get reliable ethernet connection. The light where it connects is green now (it was amber up until recently). Sometimes that works, sometimes not. When I disconnect my ethernet from my computer, the wifi works just fine. I've tried switching the ports, but no luck, the green light follows that cable. Is it the cable? Or my PC somehow? Thanks!