I have the Dell Adamo 13 and have updated my NIC driver 220.127.116.11. About once a day I loose total connectivity and try to disable the nic and re-enable it. As it enables it gets stuck (the enable stays in the screen and never enables) so I have to restart the pc. As it shuts down it get stuck on the "Shut down" screen so I then hold the off switch down to turn it off. When I transfer data this happens 100% of the time. I have loaded Windows 7 SP1, did not help, I locked down the speed to 100mb, did not help. I plugged in to the router directly instead of our switch, did not help. I tried Dell's original driver, did not help. The interesting thing is my coworker who works from home with the same laptop, had the same problem. He fix it and has no idea what he did (of course). He had the issue for 6 months and went wireless, did a lot of different things, tried wired again and it worked. Who knows.