Active directory Migration from windows server 2003 to windows server 2012 with DHCP Role

We are Migrating Current Active directory 2003 to windows server 2012 with DHCP role.

We have windows server 2012 core on which hyper v is configured and in hyper v we have installed windows server 2012 for the migration of active directory from windows server 2003.

We have successfully migrated AD and DNS role and transferred all FSMO roles to new Windows server 2012 server.

But we have issue with DHCP.

We have Export DHCP  settings from windows server 2003 and than import in windows server 2012 server. we have followed below steps for this.

on 2003 Domain controller
open cmd as a Administrator and run netsh dhcp server export c:\dhcp.txt all
copy dhcp.txt file to new domain controller windows server 2012
on 2012 Domain controller
open cmd as a Administrator and run netsh dhcp server import c:\dhcp.txt all

Authorized dhcp server on windows server 2012 and disable DHCP role in 2003 domain controller and trying to get lease from 2012 domain controller.

Lease can not be getting form new 2012 domain controller. The IP is getting on a client machine is 169.252.x.x

 we have restarted service twice and checked event log and got below details

"The DHCP\BINL service on the local machine belonging to the windows administrative domain has determine that authorized to start. it is servicing clients now."

Is there any configuration is missing in a hyper v or in dhcp ??

Kindly suggest....

Quick response highly appreciable....
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Stelian StanNetwork AdministratorCommented:
Delete the scope on 2012 DHCP server then open the "dhcp.txt" file and change the IP Address of 2003 DHCP server with 2012 DHCP server. Import the file again on 2012 DHCP server.
Have you modified IP helper information in your network device (Router/Switch) to 2012 IP.

IP helper is configured to find the DHCP server in the network.
Life1430Sr EngineerCommented:
Just export DHCP from 2012 (New) server and import once again in same using the same procedure you have done above..I also had been in same error once doing this it got working

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Active Directory

From novice to tech pro — start learning today.