You cannot use a remote access server to apply Dynamic Host Configuration Protocol (DHCP) options to a Windows Vista-based computer. Therefore, the Windows Vista-based computer loses some TCP/IP configurations.

This problem occurs if the following conditions are true:

• You configured some options on a DHCP server.
• You configured a remote access server to forward DHCP information from the DHCP server.
• The Windows Vista-based computer uses a virtual private network (VPN) connection to connect to the remote access server.