problem with samba after reconnect (webgui)

Hi,

I have a small but annoying problem:
I installed and configured samba 3 through ipkg, which is working fine.
Now when I change a setting in the webgui, for example a reconnect to my WAN in the summary screen of the router, the previous settings seem to be enabled and I can't access my shares (because of a username/password popup).
In rc.local I already put in a "cp /opt/etc/samba/smb.conf /tmp/samba/lib/smb.conf (as /etc/smb.conf is pointing to this location), but that doesn't seem to work.

Any ideas?

thanks in advance,
regards, Aniel