[Samba] Winbind authentication issues when single Domain Controller down

[Rowland Penny]

On Tue, 2022-04-26 at 08:27 -0500, Richard Anderson via samba wrote:
> 
> We have our domain controllers on a separate subnet and DNS is
> relayed via
> our firewall. However, the tests I ran against the domain (using
> nslookup)
> appeared ok.

I think you need to explain that in a bit more detail.
It sounds like your Samba AD DC's are in one subnet and your clients
are in another. If this is the case, you should be using 'sites', but
you would still need a minimum of one DC in each site.

Rowland