Hi. Maybe your router uses DCHP to connect with your knoppix client machine. Try using netcardconfig. From the K menu go to Knoppix then Network/Internet then Network card configuation. When it asks "Use DHCP broadcasting?" click on yes. If that doesn't work you may have to use PPPoE, which is in the same menu. You would have to enter your ppp user name and password supplied by your ISP. If that doesn't work, I defer to some of the experts on the forum. Perhaps your netcard isn't supported?