Ipconfig not working in Networking, Email, and Internet Connections Posted December 2, 2008 Have you tried another cable between the pc and router? Have you chacked your led lights on where the RJ-45 plugs in at? If I am not mistaking yellow connection and green means data transfer. Might be be your network card go to start, run, in the dialog box put cmd. Now type ping 127.0.0.1 or ping localhost You should have no lost packets and 0-1 ms respond Hi Thanks for the response. Just to update that I managed to get connected eventually - but using the laptop to configure the router (finally got that to work) My pc still stubbornly refuses to recognise that it has a cable plugged in. The is a green led but no orange one. Do you think my onboard lan might be not working? I can now connect wirelessly but it is doing strange things - coming up with address not found a lot, but then when I reload the page it's fine.