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#21
Hmm okay... This just happened. I tried out Ubuntu, internet did not work. Then i restarted the computer and booted normally to win 7. BAM, internet back again.
We'll see how long I have internet this time.. *crossing fingers*
If the light does not come on when your having this problem then it sounds like the NIC or cable is faulty. As you have tried different cables I don't think the cable is faulty but just an idea is it possible the cable gets knocked/moved at all, maybe the socket at either end isn't a perfect fit and if the cable is moved the connection is weakened or broken.
If the problem re-occurs Dell has a program called Intel-Diagnostics Utility listed under the driver downloads in the network drivers for the XPS420. It may provide some info. I don't have a Intel NIC so I can't check it out.