System Prefs ---> Network ---> [Linksys or Airport] ---> "Join a specific network" enter the name of your wireless network.<br><br>I have a similar problem now and then, when another signal, either another wireless network or some other broadcast signal in my area, interferes with my network and causes intermittant signal loss. Happens every few days for a/b 10-15 min mid-AM or-mid afternoon.<br><br>