I am replacing our old ISA server with a new server based on Forefront TMG.
On the DHCP server (Windows 2003) I can see that the DHCP Option 252 is pointing to the old address.
I have changed the predefined options for the server to make it point to the new proxy, however, all reservations and clients are still going through the old one.
We have a pool of dynamic addresess and also a buch of reserved ones. I have tried deleting a reservation and creating it again but it still points to the old server.
Any help will be appreciated.