When a VPN is established to a remote site the user sometimes gets the following message. <drive> is not accessible an unexpected error has occurred Not all drives are affected. Mostly if not all the time is is a mapped drive from the sbsserver (domain controller). On disconnection from the VPN the drive access is not restored. The drive icon does not change to show a disconnected state. The network drive path can be accessed via the UNC path at all times This appears to affect one user a lot of the time and a second user only occasionally. This may be down to VPN usage. This issue has existed for several months during which time the user has migrated the profile via the windows 7 profile migration wizard. Any ideas?

I suggest you change the DHCP server settings of the remote site. Be assure that the IP address of the default gateway of the VPN connection is in a different network segment. If it does not work, continue to follow the step in the article below. You Cannot Connect to the Internet After You Connect to a VPN Server http://support.microsoft.com/kb/317025Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Sorry for leaving this idle for so long. The solution provided does not fit. If this was a DHCP configuration issue on the remote host then the issue could be reproduced on demand. The issue cannot be produced on demand and only occurs on Windows 7. The issue usually happens on a single persons machine but has been known to happen on a second machine with a different user account. A prompt for "user account does not exist" has now been raised as an error message when trying to access the mapped drive. The error message includes the UNC path the user is trying to access as part of the message. If the user runs the UNC path via the run box the path is found. This indicates to me that this is not an IP routing issue. The support URL you have offered does not apply as the user can still access the internet and LAN UNC paths. Appreciate any help you can give on the matter. I have thought perhaps this is a corrupt profile but the user would like to avoid resetting the profile.