In the event that you must move the DHCP server role to another server, as a best practice you should also move the DHCP database to the new server. This ensures retention of the client leases, and reduces the likelihood of client-configuration issues.

Move the DHCP database to another server:

1. On the existing DHCP server, backup the DHCP database on the old server. As seen in Figure 1, right click on the server object in the DHCP management console and choose “Backup”.

2. As seen in Figure 2, choose the location to where you want the DHCP database to be backed up.

3. On the existing DHCP server, stop the old DHCP server service. As seen in Figure 3, right click on the server object, navigate to “All Tasks”, then choose “Stop”

4. Copy the DHCP database to the new server and, if necessary, install the DHCP server role.

5. As seen in Figure 4, on the new server, right click on the server object in the DHCP console and choose “Restore”. You will need to navigate to the location where you copied the DHCP database backup in step 3.

6. As seen in Figure 5, you should receive a message stating that the database restore was successful.

6. As seen in Figure 6, start the DHCP Server service on the new server, if necessary, by right-clicking on the server object, navigating to “All Tasks”, then choosing “Start”.

7. All services should start successfully.