smbclient gives error NT_STATUS_RESOURCE_NAME_NOT_FOUND and NetBIOS over TCP disabled

I am trying to mount a shared folder on my jetson tx1. on linux side, I am using ubuntu 16.04. the shared folder is on a windows server 2019.

the jetson is connected to the domain using wifi, the windows using ethernet.

on windows, I have enabled ethernet netbios over tcp:

on ubuntu:

smbclient -L myipadress -U myidonthedomain -W mydomain -m SMB3

it returns:

Domain=[mydomain] OS=[] Server=[] list of folder etc ... on my windows computer. Connection to myipaddress failed (Error NT_STATUS_RESOURCE_NAME_NOT_FOUND) NetBIOS over TCP disabled -- no workgroup available.

if I try a mount:

sudo mount -t cifs -o username=myusername,domain=domainname,sec=ntlmv2,vers=3.0 //windowsip/sharedfolder/ /mnt/test/

I get the error:

Unknown vers= option specified:3.0

I don't know what to try now ... any idea ?

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