First, I know that many responses will say Windows 2000 SBS is obsolete and unsupported. I know this. We maintain this server for access to a legacy application that will not run on newer hardware/software.
Most of our users are authenticated by logging in to the domain. These users have no trouble accessing the shares on our W2000SBS server. There are several casual users who do not log in to the domain. They access network shares by authenticating at time of connection to each share. This has worked fine for with clients running XP, Win7 and Win8 as recently as last week. Today casual XP users can authenticate a share connection, but Win7 and 8 users can not. They get a password failure message.
Over the weekend numerous Windows updates were applied to the W2000SBS server. It is possible that one of these updates broke the connection to Win 7/8 machines. I don't know if the WIn 7 / 8 machines have received updates since the last time this worked.
We are planning to move all of the shared data off of this server in the next several weeks, but in the mean time these casual users need access. Is there anything I might be able to do, short of rolling back the updates, that might allow these users to connect to the shares?
I'm willing to accept that it will not work with the last updates to W2000SBS if there is a logical reason other than that the OS is obsolete.