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Migrate DHCP from single 2008 R2 Server to single 2012 R2 Server

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"failed dhcp migration"

Below are the steps taken.

Export-DhcpServer –ComputerName win2k8r2-dhcp.corp.contoso.com -Leases -File C:\export\dhcpexp.xml -verbose


Import-DhcpServer –ComputerName DHCP1.corp.contoso.com -Leases –File C:\export\dhcpexp.xml -BackupPath C:\dhcp\backup\ -Verbose

1.Install DHCP Server role on 1 Windows Server 2012 computer.(rebooted @ #8)
2.Export DHCP server configuration from existing 2008-R2 server.
3.Import all DHCP server configuration on the Windows Server 2012 DHCP server.
4.Configure DHCP 2012 Server intended primary server.
5.Authorize New 2012 DHCP Server.
6.add credentials to DHCP Server for registering DNS dynamic updates.
7.Perform side by side comparison of both servers.
8.Stop DHCP Service on Old Server. Restart DHCP Service on New Server.

DHCP Service is not working on the 2012 Server not assigning IP's ?????


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