For some reason we have a 64bit windows 7 machine we just got that has horrible network access speeds, a typical file transfer is 50-100Kb/s over a gigabit connection. I've updated the nic drivers ran all windows updates and can't seem to figure out what the issue is. We have other windows 7 machines on the network and none of them seem to have any issues but this one is so slow we can't push out Symantic Endpoint Protection it's so slow the install times out. when trying to copy files to the machine it will randomly come up with a message that says 'couldn't access \\xxx\xxx' try again? if I retry a few times normally it will start working again but something clearly isn't working correctly. I've tried using different switches/patch cables even tried it on another subnet to see if that may have been the issue but alas I've seen no improvement. Any suggestions before I send it back to dell?