I'm having a problem with our Airport Dual Ethernet hardware. It's been connected to a variety of PCs and Macs for well over a year, with no problems. However, lately we have had to unplug its power/restart it several times a day. All the computers still connect just fine to the base station, but there's no internet available. Computers lose their IP addresses. Any thoughts? I'd really appreciate it. airport firmware v. 4.0.8. All computers have up-to-date drivers, for Panther, Jaguar, XP, w2000, etc. I looked through Apple's support and found something that fit the symptoms having to do with PPoE. Checked this, it's not the problem. help!?