Server 2003 WAN & LAN Change

When changing the LAN NIC to the WAN NIC and a DHCP server had previously been enabled on that card, even after configuring the LAN properties  of both WAN & LAN you then need to run the configure server IP from the server management console in Internet and Email.

This will then configure the registry for the change of IP’s on both the WAN and LAN. At the end of the server IP change it will offer you the chance to run Routing and Remote Access wizard this has to be run in order to supply internet to the workstations.