Cannot mout old NAS on Ubuntu 22.04

I have an old NAS, a Synology CS407, which I want to mount on my Ubuntu server running Ubuntu 22.04.3 LTS.However, I cannot succeed in mounting it.

I have tried mounting it with NFS and SMB/CIFS, but both don't work. I would like to use SMB, as it has authentication.This particular NAS only supports SMB version 1 I think.

Anyway, I've tried to mount using the following command, receiving this error:

mount.cifs //192.168.1.201/volume1/folder1 /mnt/cifs/folder1 -o vers=1.0,user=adminmount error(6): No such device or address

It says to look at dmesg, which says:

Use of the less secure dialect vers=1.0 is not recommended unless required for access to very old serversCIFS: VFS: Use of the less secure dialect vers=1.0 is not recommended unless required for access to very old serversCIFS: Attempting to mount //192.168.1.201/volume1/folder1CIFS: VFS: cifs_mount failed w/return code = -6

I have seen this question already, but it didn't help me.

Any help is appreciated!

Ps. I know SMB1 is very old and insecure; should I just toss the NAS away and get a newer one, or can it still be used?

EDIT 1

smbclient -L //192.168.1.201 -U admin returns the following:

Password for [WORKGROUP\admin]:        Sharename       Type      Comment        ---------       ----      -------        home            Disk      home        folder1         Disk      share1        IPC$            IPC       IPC Service ()Reconnecting with SMB1 for workgroup listing.        Server               Comment        ---------            -------        Workgroup            Master        ---------            -------        WORKGROUP