Also, did you remove the old DC’s PDC_Emulator DNS entry after demoting DC1? See: http://samba.bigbird.es/doku.php?id=samba:fsmo-roles “One PDC_Emulator, one DNS record" LP On Nov 6, 2023 at 18:32 +0100, samba at lists.samba.org, wrote: > > Now, I'm unable to connect to the domain using RSAT - the error is "RPC server > unavailable".