I have an annoying problem here. I have an Airport extreme base station with 4 macs connected to our 40-bit encrypted network. now about every 20-60 min. all the computers lose the signal and our network dosn't show up. It's because the base station restarts, so we have to wait 2 min. before our the newtwork comes up again. Sometimes it just loses connection and we never get it back until i pull the power plug out of the base station and put it back in. Then it reboots and works fine for another 20- 60 min. Has anyone had this problem?