The ability for NAL to stay disconnected in offline mode has been broken. When laptop users connect via modem, NAL should not auto reconnect and refresh NAL across the slow dial-up connection. The restrictonly=3 option allows them to stay offline if when they connect to the tree thru VPN over modem.
For ZDM6.5 SP2: fixed in ZENworks 6.5 Desktop Management SP2 IR1 or newer found at Novell Downloads
Formerly known as TID# 10099497 NOVL104071