Dopo aver incontrato questo problema aggiungendo un nuovo Domain Controller 2008R2 a l'infrastruttura (2003) e aver perso 6 ore a cercare di risolvere, in una ricerca trovo questo... !!!
Ottimo!!! Ha risolto!
I fixed the issue... this is what I had to do...
Run the following command on all domain controllers in the forest.
Net Stop NTFRS (stop the file replication service)
Go Into Registry Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NtFrs\Parameters\Backup/Restore\Process at Startup
Change the BurFlags DWORD to = D4 on the Primary Domain Controller and change to D2 on all of the backup domain controllers.
Start the NTFRS service again by using Net Start NTFRS command
After I did this on all of the domain controllers it started working properly.
Thanks for your help.
PS
Ricordate poi di cambiare metodo di replica e passare da NTFRS a DFSR utilizzando DFSRMIG...
Ciao Luca