byte
I am running a network of Windows 10 Pro workstations in a DOMAIN using updated SME 9.2 as Domain Controller.
The SME server is in gateway server mode, but it makes no difference if in server only mode (as I have done that also when Telstra cut our phone cables & a temporary reconfigure was required).
Enabling SMBv1 on workstations as mentioned in this thread is essential if you want to browse shares are per earlier versions of SME & Windows.
This opens the possibility of a significant viral exposure in Windows which has always been there in years gone by, but as end users who want to keep using SME server 9.2 we have no other choice.
Just be firm about general security of your network to prevent hackers gaining access.
You also need to apply other tweaks as mentioned & depending on the version of Windows disk you have, the process can be easier or more difficult.
I believe latest releases of Windows 10 are usable in this way with SME 9.2. Microsoft fixed some problems with earlier releases of Windows 10.
Read the threads in these forums & bugs & links to Windows support articles, all the detailed answers are there.
Ask again if you are unsure.
First step though is to get your SME server updated, as you do have a "broken" & insecure server. Your approach is a bit "head in the sand" style at present.