On Thu, 2021-07-22 at 09:16 +0200, andrea ballarati via samba wrote: > In ubuntu 20.04 samba doesn't support smbv1. It must be enabled > manually. > It very probably is the removal of SMBv1, but I would still like to see the smb.conf from the OP's DC, if it is running nmbd then it might actually be a PDC. Rowland