I have an NT4 style domain running on Samba. With a new installation of 1803 Pro I am unable to join the PC to the domain. If I try I get a popup saying "An Active Directory Domain Controller (AD DC) for the domain XXXX could not be contacted". My 1709 machines have no problems joining the domain once SMB1.0 has been enabled in the Add/Remove Features part of Programmes and Settings, and the relevant registry keys have been set. Googling around I see it is the same for people who have an SBS2003 domain bot no solution. (SBS2003 went EoL 4 years ago.) Does anyone know a way round the issue? Changing to an AD domain is not an option.