I'm trying to set up a router, but the setup keeps telling me that my Ethernet adapter is not working. The Ethernet adapter troubleshooting tells me that the computer is configured correctly but the DNS server is not responding. (During this time the Internet is working as I have the cable plugged in to the computer.) I have the adapter set to automatically find the DNS server. I have run ipconfig/flushdns and ipconfig /registerdns to no avail. Do I need to get another network adapter? My laptop is probably at least 6 years old, and this problem started after I upgraded to 8 from XP - I had the router set up just fine on the old version. Thanks for your help!