SMB/CIFS problems to mount a share

Hello everyone,

I'm using Openmediavault 5.4 to be my NAS OS and as client Zorin 15
I have upgraded from the scratch from OMV Version 4.
Under OMV 4 I had not problems, to mount my CIFS stuff.

## from fstab ##
//10.*.*.*/NAS /mnt cifs auto ,uid=1000,gid=1000,username=nas,password=***

since I use OMV5 it is not working the /mnt folder looking like this

d????????? ? ? ? ? ? mnt/
and unmounted
drwxr-xr-x 2 root root 4096 Jun 24 2019 mnt/

when I try do a LL on the /mnt I get a error massage that access is not possible (file handle)
I have tryed do a manual mount, same result like the fstab mount and also no error massages.

when I do dmesg I get this

[11818.422848] No dialect specified on mount. Default has changed to a more secure dialect, SMB2.1 or later (e.g. SMB3), from CIFS (SMB1). To use the less secure SMB1 dialect to access old servers which do not support SMB3 (or SMB2.1) specify vers=1.0 on mount.
[12290.271676] CIFS: Attempting to mount //10.*.*.*/NAS
[13149.553801] CIFS: Attempting to mount //10.*.*.*/NAS
[13423.797909] CIFS: Attempting to mount //10.*.*.*/NAS
[13705.012771] CIFS: Attempting to mount //10.*.*.*/NAS

I already tryed to use the cifs vers=1.0 to 3.0 instad cifs auto but that not helped too.

And now the funny part.
Under Windows10 I have no problems to access the SMB share, and under Zorin also NO problem when I use Nautilus to browse the network I can see the share and I can access it.
So SMB is working I just can't mount it.

I have absolute no clue, since 2 days I trying to solve the problem no success.
Right now I use NFS, and with NFS I can mount my stuff without problems, I had just to install

sudo apt install nfs-common

Because Zorin didn't had this yet.
Slowly I think I will downgrade back to OMV 4.

I hope someone have a idea, what else I can try.

Think it is time for Finston Pickle to advise - he is the resident user/expert when it comes to NAS and Zorin!

then I hope he will see my post