We have a Win8 test laptop that consistently loses network access on our 802.1X SSID. We enforce machine auth on the SSID and I suspect that may be part of the problem. Any time I check the users connection after reporting that they've lost network access, they're in the user role and there aren't any cached machine credentials. Fast Boot is enabled on this machine and anytime the user shuts down the laptop and boots up (this is when Fast Boot kicks in) 24 hours after his previous machine authentication, he seems to have connectivity issues. My assumption is that with Fast Boot, machine authentication does not occur. Just like it would not occur if you hibernate/resume Win7. Can anyone confirm?