I am looking for a software-only solution. (Without add-on purchased software.)
Setup: Mac running OS X 10.3.5. Networking via AirPort Extreme card connecting to AirPort Extreme base station.
To be performed: Run AirPort Admin utility. Connect to base station. Select restart function. Exit AirPort Admin utility.
Ideally, I would like to set this up as a scheduled task (via cron).
I would use AppleScript, except AirPort Admin utility does not appear to be a scriptable application (no dictionary.)