On 04/03/2020 16:18, Rowland penny via samba wrote: > I would get them to do both. OK. > If you do not use IPv6 internally, you do not need it. OK. > AD depends on DNS, so AD DCs should have a fixed IP. The AD DCs do have a fixed IP. It's the other Windows Servers used for Sage and RDS that don't... at the moment. :) Paul