[Samba] From Linux machine cannot see XP machines share list anymore

[samba.20.mr486 at spamgourmet.com]

Hi, I used to be able to smbmount a drive on my XP machine. But today I 
tried and i got:

$/usr/bin/smbmount //systen/2017 /backup -I 10.0.0.11
Password:
mount error: No such device
Please look at smbmount's manual page for possible reasons

When I do

$/usr/bin/smbclient -L systen -I 10.0.0.11

I get:


Added interface ip=10.0.0.10 bcast=10.255.255.255 nmask=255.0.0.0
Server time is Sat May 27 13:27:36 2017
Timezone is UTC+1.0
Domain=[VALLEY] OS=[Windows 5.1] Server=[Windows 2000 LAN Manager]
connected as guest security=user
$

i.e it is not showing any shares. although From other windows machines 
the shares are visible and accessible.....Any ideas appreciated.  It 
used to work but I cannot remember any recent change that would have 
affected the operation of this file sharing.

Thanks