I've always connected my 360 to the Internet bu running an Ethernet cable from my 360 to laptop, wireless connecting laptop to router. Recently I have upgraded to Windows 8.1. I can't now connect to the Internet. My laptop is connected but I keep getting
"Can't obtain an IP address from your router or modem"
I have factory re-set the connection options and tried both automatic and manually entering connection settings as per the support pages. Does anyone know how to resolve this?