Mac OS X 10.5: Network locations migrated from Mac OS X 10.4 do not retain WINS configuration settings

Issue or symptom

WINS configuration settings (in the WINS tab of Network preferences, in System Preferences) may not be retained for Network Locations migrated from Mac OS X 10.4.

Solution

Create a new network location (via "Edit Locations..." in the "Location" pop-up menu, in Network preferences).

Configure the new location with the desired WINS settings.