Unable to connect to NAS - what settings should I use?

[agent_kith]

After tearing all my hairs out... I figured this out. It turns out that for whatever reason snakeoil wanted to connect only using SMB v1 and my Synology NAS is configured to have the minimum SMB version as v2 and max SMB version as v3. So Snakeoil keeps throwing that Error 95 message. I have now verified that if I set the NAS to use a minimum SMB v1, the connection from snakeoil now works.

Using the old ISO with the RT kernel?

If yes, you need to use the kernel here to get v2/v3: Link (Filesystems)

Nothing intrinsically bad about SMB v1. Especially if you control your own network, but if you have other IoT devices on the same network, maybe not a good idea to use just v1. This issue will automatically go away once I get my damn arse back on the chair and finish the GUI.