WRV54G firmware 2.37. The QuickVPN utility works as long as the Windows XP Firewall is turned off. With the Windows XP Firewall turned on, the VPN setup hangs at the "Verifying Network" part (whatever that means). Not sure what IP protocol might be getting filtered by the firewall, but other VPN clients seem to function properly with the XP firewall turned on. Perhaps it is a timeout issue where the XP firewall loses a connection state, though the WRV54G expects it to be up?