[Samba] Samba not working properly

[Jason Lomax]

Hello,
 
We use Samba on our Linux Machine which is a file server. Users keep having
problems accessing the shares. They either get challenged for a username or
password or the share is inaccessible. The workaround we have is to enter
the following command to rejoin the domain: 

smbpasswd -j TELECOMRFQ -r NT-SERVER1 -U administrator

This works for a little while then the users have problems again after. I
would appreciate suggestions to fix this problem