More information:
this is the return of smbclient:
volumio@volumio:~$ smbclient //192.168.1.1/samba
Enter volumio's password:
Domain=[WORKGROUP] OS=[Unix] Server=[Samba 1.9.16p10]
Server requested LANMAN password (share-level security) but 'client lanman auth = no' or 'client ntlmv2 auth = yes'
tree connect failed: NT_STATUS_ACCESS_DENIED