I am replacing our existing DHCP server, which is running on Windows Server 2003 R2, with a new one running Windows Server 2008 R2. I have tried doing a simple backup/restore from the DHCP console in each server. I have also tried using netsh from the command line and doing an export/import on the scope.
In both cases, the scope information gets transferred to the new server. It sets all the scope options, the address pool, etc. But also in both cases, the existing leases and reservations are not transferred. Both are completely blank on the new server.
What am I missing?