HiI have Windows 7 Prof (fresh install) x64. I use the build in IPSec/L2TP. If i start the machine, use the internet for a while and hibernate - no problem. But if i use the VPN, disconnectand try to hibernate - black screen and nothing happens (waited for 15 minutes). I can hear Outlook notifications and so on - but screen keeps black. Have to do hard reset.Is there any timeout on the VPN?Thanks,Michael

I would like to keep this thread alive to see if there is any solution. I am having the same issue - if I use VPN at any point during the day, I have to shutdown as opposed to hibernating. Hibernating only goes to a black screen, but my laptop never shuts off. This is after disconnecting vpn, so I am no longer connected before I try to hibernate. I have had one other co-worker try the same steps with the same results. I'm using windows 7 Ultimate, using multiple different windows vpn and cisco vpn clients and configurations.

I am also having this issue. Any luck resolving the problem?

I am also having this exact issue. If I use the microsoft l2tp/ipsec vpn connection, my computer will have the same exact behavior. I have a Dell E6410 and am running windows 7 x64 professional. Is anyone having this issue with a 32 bit version of windows 7 or with a non-dell machine? I want to make sure it is a windows issue (32 bit or 64 bit) and not a Dell issue.

I have W7 64-bit and the same problem with VPN. if VPN is connected computer will not go to sleep. I have gone through all device settings and computer will sleep under all other conditions apart from this one. There also seem to be no time-out option on VPN settings so if you forgot to "disconnnect" VPN then computer will remain "on" indefinitely. anyone from MS care to comment? not that difficult to replicate this problem P.S. Not dell computer (ASUS board, i7-2600k)