If you change the name of your MDT server then you need to do a few other things to make your deployments continue to work. Specifically, you need to:
- Make sure your bootstrap.ini file has been updated to reflect the new UNC path to your deployment share.
- Make sure your boot image has been updated to include the changes you made to bootstrap.ini (update your deployment share to update your boot image).
- Make sure the Windows Deployment Services server (if you have one) has been updated to use your updated boot image.
- Make sure your CustomSettings.ini doesn't have any references to your old MDT server name.