New Mac / Ventura won't let me log in to Snow Leopard Server
Very recently I got a new Mac - a 13.6" MacBook Air M2 with MacOS Ventura installed.
I have an old Mac Mini Server that runs MacOS X Snow Leopard Server, that I still use as a file sharing server for home (only three users). This server has worked flawlessly - and still does, as long as I log onto it from from either my old 2013 15" MacBook Pro Retina, or my son's 2017 13" Macbook Pro. Both of those run MacOS 10.14.6 Mojave. And I can log into all three user-accounts on the server from those machines.
When I try to log in to the server from my new Mac (or from my wife's 13" MacBook Air M1), it will not accept the user name / password combination for any of the user accounts on the server. I know that these name / password combinations are correct, as they work from the older MacBook Pro clients. Files on the server can be read from (and copied to) the newer MacBook Airs, as it is possible to connect to the server as guest, but we need to be able to write to the server as well, and that we cannot do, unless we can log in.
I don't know if this is due to new, incompatible hardware (M1 or M2-chip) or software (MacOS Ventura). Does anyone have any suggestions to what I could do? Preferably something that does not involve an investment in more new hardware.
MacBook Air (M2, 2023)